Tutorials Posted by bibhupada
| bibhupada from govt |
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| bibhupada's Posted Tutorials | |||||
| Bounty | Category | Question | Tutorial | Date Posted | |
|---|---|---|---|---|---|
| $0.25 | Mathematics | Algebra | FULL WORK SHOWN
...n(1) and (2) 4y + 2y = 36+12 so 6y ... | Nov 20, 2009 at 12:31:48PM | |
| $0.50 | Mathematics | Algebra-Help! | FULL WORK SHOWN
...o 33x = 18 -84 so 33x = -66 so x =-66/33 =-2 so... | Nov 20, 2009 at 12:28:31PM | |
| $0.25 | Mathematics | algebra | step by step answer
...by 3 we get 2x - y =2 ---------e... | Nov 20, 2009 at 12:03:35PM | |
| $0.25 | Mathematics | algebra | please see the correct answer ( work shown)
...3x + 9 so -3x + 8 =... | Nov 20, 2009 at 12:01:24PM | |
| $5.00 | Mathematics | Mat 115 | FULL WORK SHOWN
...e your... | Nov 19, 2009 at 9:35:19PM | |
| $1.00 | Mathematics | algebra | FULL WORK SHOWN OF ALL 4
... so x =4 , y =7 2) y =-4x -7 --eqn(1) y =3x ---------eqn(2) so -4x -7 = 3x so -4x -3x =7 so -7x =7 so x =-7/7 =-1 so y =3x ... | Nov 19, 2009 at 02:04:05PM | |
| $1.00 | Mathematics | Please help me with this Calculus proble | PLEASE SEE YOUR DETAILED STEP BY STEP SOLUTION
...e two positive numbers from question x + 3y =1200 --------eqn(1) so x =1200-3y ... | Nov 17, 2009 at 05:25:07PM | |
| $3.00 | Mathematics | Help Math 209 week three quiz | FULL WORK SHOWN
...( x^2 -5x + 6) (taking x common) = x( x^2 -3x -2x + 6) =x[ x(x-3) -2(x-3)] =x(x-3)(x-2) (taking (x-3) common) #6) x^3 -5x^2 -6x = x( x^2 -5x -6) = x( x^2 -6x + x -6) =x[ x(x-6) +1( x-6...... | Nov 14, 2009 at 8:24:30PM | |
| $0.75 | Mathematics | Word problem with ratio | FULL WORK SHOWN
...3x -2( 2x -4) =-3 (putting the value of y from eqn(1)) so 3x -4x + 8=... | Nov 14, 2009 at 12:35:48PM | |
| $0.50 | Mathematics | please help me go step by step to solve | FULL WORK SHOWN
... = a*b + a*c so 8( 2x... | Nov 14, 2009 at 12:29:50PM | |
| $0.50 | Mathematics | Please help me go step by step to solve | FULL WORK WITH DETAILED STEPS SHOWN
...o -3y = 14 -5x dividing both sidesy -3 we ge... | Nov 14, 2009 at 12:27:18PM | |
| $0.50 | Mathematics | factor trinomial/polynomial | FULL WORK SHOWN
...x^2 -12x +2x -3 = 4x( 2x -3) +1(2x -3) =(2x-3)(4x+1) 4) a^2b +2a... | Nov 14, 2009 at 11:37:52PM | |
| $0.50 | Mathematics | algebra line equations | FULL WORK SHOWN
...slope of the line passing through the points (x1 ,y1) and (x2 ,y2) is (y2-y1)/(x2-x1) so... | Nov 13, 2009 at 7:40:49PM | |
| $0.25 | Mathematics | solve for b | FULL WORK SHOWN
...btracting PH both sides) so S -PH = 2B +... | Nov 13, 2009 at 11:39:01PM | |
| $0.25 | Mathematics | algebra | FULL WORK SHOWN
... 5*(7x+3y) =5*15 so 35x + 15y =75 -----eqn(4) eqn(4) - eqn(3) is 35x +15y -24x -15y = 75 -9 so 11x =... | Nov 13, 2009 at 11:29:53PM | |
| $2.00 | Mathematics | For Bibhupada | question # 2 and 3 solved step by step
...ase see your... | Nov 11, 2009 at 12:41:50PM | |
| $10.00 | Health-Care | The right to live or die | RIGHT TO LIVE OR DIE (A COMPLETE RESEARCH PAPER WITH INTRODUCTION AND CONCLUSION)
...SEE YOUR... | Nov 10, 2009 at 09:47:31PM | |
| $6.00 | Mathematics | MA170 Homework | A++ answers of all 20 questions
...ee you... | Nov 08, 2009 at 05:11:18PM | |
| $1.00 | Mathematics | Multiply | FULL WORK SHOWN
...] =[3a -2a +3][3a+2a -3... | Nov 07, 2009 at 10:17:05PM | |
| $1.00 | Mathematics | For Bibhupada | full work with detailed steps shown
...wer.give m... | Nov 07, 2009 at 9:31:44PM | |
| $5.00 | Mathematics | MA170 Homework | PLEASE SEE YOUR CORRECT ANSWERS
...please... | Nov 07, 2009 at 11:21:58PM | |
| $1.00 | Mathematics | differentiations with the number e CALCULUS | FULL WORK SHOWN (derivative of an implicit function)
... sides with respect to x we get d/dx[ 2x 3e^y] =d/dx[ e^(x y)] => d/dx[2x] d/dx[3e^y] =[d(e^(x y))/... | Nov 03, 2009 at 7:33:11PM | |
| $1.00 | Mathematics | differentiations with the number e CALCULUS | FULL WORK SHOWN
... = e^(-1) x d/dt[ (t^2-1)] (since d/dt[ k f(t)]=k x d/dt(f(t)), wh... | Nov 03, 2009 at 7:19:39PM | |
| $1.00 | Biology | Bcells activated | exact answer
...bodies C) antigens D) macroph... | Nov 01, 2009 at 11:23:15PM | |
| $6.00 | Mathematics | MA170 Homework | 100% correct answers of all 25 questions
...please... | Nov. 01, 2009 at 12:01:37AM | |
| $15.00 | Mathematics | Differential Equations | FULL WORK WITH DETAILED STEPS SHOWN OF ALL QUESTIONS
... of c1 and c2 in eqn(1) y(t)  =(2/3) e^(3t) + (1/3) e^(-3t) b) lim ( t-> ∞) y(t) =(2/3) e^(∞) +(1/3) e^(-∞)                       =∞ +0             ...... | Oct. 31, 2009 at 07:37:05AM | |
| $1.00 | Biology | Immuniglobulins | exact answer
...obulins formed of five subunits, tha... | Oct. 30, 2009 at 09:29:25AM | |
| $10.00 | Mathematics | calculus ii q7 | COMPLETE STEP BY STEP INTEGRATION WITH FULL WORK SHOWN
...see this. if... | Oct. 29, 2009 at 04:47:33AM | |
| $1.00 | Biology | Defense against pathogens | please see your correct answer
... answe... | Oct. 29, 2009 at 12:25:51AM | |
| $1.00 | Biology | immune responses | please see your correct answer
...er is ... | Oct. 29, 2009 at 12:24:03AM | |
| $0.75 | Biology | Damage to lungs | exact answer
...es of the lungs would result in A) a loss of surf... | Oct 28, 2009 at 10:00:13PM | |
| $0.75 | Biology | Tuberculosis | exact answer
...ant streptococcus B) Staphylococcus aureus C... | Oct 28, 2009 at 9:56:33PM | |
| $0.50 | Biology | spleen | exact answer
...Areas of the spleen that contain la... | Oct 28, 2009 at 9:50:18PM | |
| $0.50 | Biology | antibodies | perfect answer(A+ answer)
... IgE D) IgD E) IgM ans: IgG (B) IgG ... | Oct 28, 2009 at 9:43:18PM | |
| $1.00 | Mathematics | Math 117 Algebra 1B | FULL WORK SHOWN
...3 = (x^10)(x^3) =x^(10+3) =x^13 2) 5^4/5^6 = 1/( 5^(6-4)) = 1/5^2 =1/5*5 =1/25... | Oct 28, 2009 at 09:44:26PM | |
| $1.00 | Biology | what is a biome? | exact answer
...uatic (freshwater and salt-water) biomes. While scientists do not agree on the number of land-based biomes, the six most widely accepted biomes are: tundra , taiga , grassland , deciduous forest ,...... | Oct 28, 2009 at 03:51:29PM | |
| $0.30 | Mathematics | function | detailed steps shown
...2)x +7] +7 =2x+2... | Oct 27, 2009 at 10:28:18PM | |
| $0.50 | Mathematics | function | detailed steps shown
...2)(6x 18) 4 ... | Oct 27, 2009 at 10:25:03PM | |
| $1.00 | Mathematics | How to factor the equation | STEP BY STEP SOLUTION OF BOTH THE QUESTIONS
...( z-11) =0 so (z-11)(z-5) =0 so z =5 or 11 4) x^2 -17x+ 72 =0 quadrat... | Oct 27, 2009 at 10:21:01PM | |
| $0.50 | Mathematics | how to factor the equations | STEP BY STEP SOLUTION
...o 2( y^2 -4^2) =0 so 2( y+4)(y-4) =0 (because... | Oct 27, 2009 at 10:15:36PM | |
| $0.50 | Mathematics | mixed numbers | detailed answer
... =32/5 if we d... | Oct 27, 2009 at 10:05:59PM | |
| $1.00 | Mathematics | Quiz wk 2 #2 | please see the detailed answers
...),(y,0)} {(w,0),(h,t),(y,n)} {(w,t),(h,n),(y,0)} b) no. of elements ... | Oct 27, 2009 at 2:04:03PM | |
| $1.00 | Mathematics | Quiz wk 2 #4 | correct answer
...ive identity) d) 5(9+3) =5.9 +5.3 (distributive) e)2+(3+2) =(2+... | Oct 27, 2009 at 1:34:51PM | |
| $0.50 | Mathematics | Quiz wk 2 #1 | all subsets
...A = {2 , 0 , t} all subset... | Oct 27, 2009 at 1:30:20PM | |
| $0.50 | Mathematics | division | step by step division
... 3x -9 --... | Oct 27, 2009 at 1:17:58PM | |
| $1.00 | Mathematics | OA #10 | correct answer
...is a subset of D D is a su... | Oct 27, 2009 at 1:13:43PM | |
| $0.25 | Mathematics | which fraction is the largest? | STEP BY STEP ANSWER
...6 = 6*5/16*5 =30/80... | Oct 26, 2009 at 09:11:45PM | |
| $3.00 | Biology | Anatomy and physiology question!!! HELP!!! | most probable answer
...he cause may be in the lungs also. so the patient may be asked to do 1)chest x-ray (A-P and lateral view... | Oct 24, 2009 at 12:54:32PM | |
| $2.00 | Mathematics | Solve using order of operation | FULL WORK SHOWN ( b =0 or 1)
...+ 28 = b xb + b x 2 + 14 xb + 14 x... | Oct 22, 2009 at 10:14:54PM | |
| $5.00 | Mathematics | Algebric Equations | all questions answered .(FULL WORK SHOWN)
.../2)x +1/2 =4x + 21/2 +7/2 so (7/2)x -4x =21/2 +7/2 -1/2 so x[7/2 -4] =27/2 so (-x/2) =27/2 so x =-27 6) 6 -3(3x -1) =36 so 6 -9x+3 =36 so 9 -9x =... | Oct 22, 2009 at 10:10:50PM | |
| $0.50 | Mathematics | mulitply the difference between 5 square | FUL WORK WITH STEPS SHOWN
...5*5 =25 4 squared =4 *4 =16... | Oct 22, 2009 at 9:54:37PM | |
| $1.00 | Biology | Cellular respiration | CORRECT ANSWER
...c acid cycle b. glycolysis c... | Oct 22, 2009 at 09:42:48PM | |
| $30.00 | Mathematics | Calculus (worth $10 tip if done on Oct. 19) | FULL WORK SHOWN OF ALL 6 QUESTIONS
...                           =x^3 -(3/2)x^2 +∫[9(t-3)-20]dt/t                                                       Â...... | Oct 19, 2009 at 10:28:01PM | |
| $6.00 | Mathematics | MA170 Homework | 100% CORRECT ANSWERS OF ALL 20 QUESTIONS
...ase see your co... | Oct 17, 2009 at 9:59:03PM | |
| $10.00 | Mathematics | MA170 Homework2 | PLEASE SEE YOUR CORRECT ANSWERS
...u have any doubt... | Oct 16, 2009 at 3:14:20PM | |
| $4.00 | Mathematics | Finite Math | PLEASE SEE YOUR 100% CORRECT ANSWERS
...ave any doubt pl... | Oct 15, 2009 at 1:15:03PM | |
| $0.50 | Mathematics | solve fog using f(x)=x2 & g(x)=2x | FULL WORK WITH STEPS SHOWN
...(putting the value of g(x)) ... | Oct 15, 2009 at 12:24:12PM | |
| $1.00 | Biology | facilitated diffusion | your answer
...the process requires transmembrane proteins. In some cases, these — like ion channels — form water-filled pores that enable the molecule to pass in (or out) of the membrane following its...... | Oct 12, 2009 at 11:29:46PM | |
| $0.50 | Mathematics | Do the operations and simplify | FULL WORK WITH CORRECT ANSWER SHOWN
...)(2-a)]x6(a-2)/6(a+7)] =... | Oct 12, 2009 at 10:05:22PM | |
| $1.00 | Mathematics | m=2; (5,4) written in standard form | FULL WORK SHOWN
...----eqn(1) x1 =5 , y1 =4 m =2 putting all ... | Oct 12, 2009 at 9:55:27PM | |
| $1.50 | Mathematics | 7th grade math help (EASY) | ALL CORRECT ANSWERS
...(additive identity) 3)65x(1/65)x =... | Oct 12, 2009 at 1:19:50PM | |
| $5.00 | Mathematics | How do you integrate x/(x^4+x^2+1), 1/(x^2*sqrt(4x+1) and e^2x/(1+e^x)? | STEP BY STEP INTEGRATION OF ALL 3 QUESTIONS
...------eqn(1) put t =1 in eqn(1) so 4D=1 so D =1/4 put t =-1  in eqn (1) so 4B =1 so B =1/4 put t =0 in eqn(1) so A+ B-C+ D =1 so A - C + ( 1/4 + 1/4) =1 so A -C = 1/2 -----EQN(2) put...... | Oct 12, 2009 at 08:55:31PM | |
| $3.00 | Mathematics | How do you integrate x/(x^4+x^2+1), 1/(x^2*sqrt(4x+1) and e^2x/(1+e^x)? | STEP BY STEP INTEGRATION OF #1 and #3
...2) ∫  dt/( t^2 + t + 1/4 -1/4 + 1) =  (1/2) ∫dt/(t+1/2)^2 +[sqrt(3)/2]^2 =(1/2) [1/(sqrt(3)/2] arctan[ ( t+1/... | Oct 11, 2009 at 11:44:22PM | |
| $0.50 | Mathematics | Last integral | FULL WORK SHOWN
... ln(√x) =t =>(1/√x)(1/2√x)Â... | Oct 11, 2009 at 12:20:22PM | |
| $1.00 | Mathematics | Another integal issue | STEP BY STEP INTEGRATION
... by √(6+x) we get ∫[(6+x)/√(36 -x^2)]dx =∫6/(√(36 ... | Oct 11, 2009 at 12:09:50PM | |
| $1.00 | Mathematics | How do I integrate this one | STEP BY STEP INTEGRATION
...2)(2/sqrt(19)) arctan [ 2(t 1/2)/sqrt(19)] (because ∫ dx/(x^2 a^2) = (1/a)arctan(x... | Oct 11, 2009 at 11:41:08PM | |
| $3.00 | Mathematics | Applied Calculus | FULL WORK WITH COMPLETE STEP BY STEP SOLUTION
...6t 10 mt/sec acceleration is the rate of change of velocity so acceleration = dV/dt = 12t -16 mt/sec^2 given ... | Oct 11, 2009 at 02:48:09PM | |
| $3.00 | Mathematics | Limits | FULL WORK SHOWN
...-1)/x^2 so lim ( x-> 0) g(x) = lim ( x-> ... | Oct 11, 2009 at 02:29:33PM | |
| $5.00 | Mathematics | Calculus | FULL WORK WITH DETAILED STEPS SHOWN (PLEASE SEE)
...3-) (x+3) put x =3-h , h>0 x-> 3- => h -> 0 = lim ( h->0) (3-h+3) =lim ( h-> 0) (6-h) =(6-0) =6 right hand derivative = lim ( x-> 3+) [ h(x) -h(3)]/(x-3) ... | Oct 11, 2009 at 02:17:13PM | |
| $1.00 | Mathematics | Please solve and show me how it's done, I'm not getting the hang of these. Thank you | FULL WORK WITH DETAILED STEPS SHOWN
...(10v^2 -5v-2v+1)] =[(2v(v-5)-1(v-5)/2v(v+2)-1(v+2)]*[5v(v+2)-1(v+2)]/[5v(2v-1)-1(2v-1)] =[(v-5)(2v-1)/(v+2)(2v-1)]*[(v+2)(5v-1)/(2v-1)(5v-1)] =[(v-5)/(v+2)]*[(v+2)/(2v-1)] ... | Oct 10, 2009 at 10:03:12PM | |
| $1.00 | Mathematics | Stuck on completing math portion of high school equivalency | here are your detailed solutions
... SO X =6 SO 5X + 3 = 5(6) +3 = 30+3 =33 3) 15Z =3Y SO Z = (3Y/1... | Oct 10, 2009 at 11:47:18PM | |
| $1.00 | Biology | carbohydrate catabolism | exact answer
...anobacteria are th... | Oct 10, 2009 at 01:56:10PM | |
| $1.00 | Mathematics | Trigonometric Functions | FULL WORK SHOWN
... (11pi/4)sin(5pi/3) =sin( 11pi/4 5pi/3)... | Oct 09, 2009 at 8:48:01PM | |
| $1.00 | Mathematics | ratio men to women | FULL WORK SHOWN
...es =x so no. of men =(247-x) s... | Oct 09, 2009 at 1:30:49PM | |
| $1.00 | Mathematics | Show how to solve 7/16h + 1/9 = 1/3 Step | your step by step solution
... => (7/16)h = 2/9 crossmultiplying we get (7h)(9) =(16)(2) =>... | Oct 09, 2009 at 1:27:34PM | |
| $1.00 | Mathematics | Factor | FULL WORK SHOWN
... (2x)^2] (using the formula a^3 b^3 = (a b... | Oct 09, 2009 at 1:12:16PM | |
| $1.00 | Biology | Are ribosomes in both animal and plant cells? | exact answer
...eter. They are free in the cytoplasm and there may be up to 20,000 ribosomes per bacterium , which can account for 25 p... | Oct 09, 2009 at 08:58:39PM | |
| $1.00 | Biology | please help me with amino acid questions. | EXACT ANSWER
...rboxyl ( 8COOH) groups. Of these acids, 20 serve as the building blocks of proteins . Known as the standard, or alpha, amino acids, they comprise alanine, arginine, asparagine, aspartic acid,...... | Oct 09, 2009 at 08:37:31PM | |
| $20.00 | Biology | biology | all questions answered
...stions ... | Oct 09, 2009 at 05:56:53PM | |
| $1.00 | Mathematics | please help me to understand how i have to solve this word problems | FULL WORK SHOWN
...d three is 4x + 3 twice the number is 2x difference ... | Oct 08, 2009 at 1:41:13PM | |
| $1.20 | Biology | Meiosis | exact answer
...ather. These pairings are bivalents. A chromatid of one chromosome in the bivalent may join together with a chromatid from the other chromosome, at points along their length called chiasmata. They...... | Oct 08, 2009 at 10:42:55PM | |
| $0.50 | Mathematics | please help college homework | FULL WORK WITH DETAILED STEPS SHOWN
... $(4x/5) so 4x /5 = 63.96 so 4x = (63.96) x... | Oct 08, 2009 at 04:06:50PM | |
| $0.50 | Mathematics | I need the complete solution asap please | FULL WORK WITH DETAILED STEPS SHOWN
...[ n/2 -n/3] ... | Oct 07, 2009 at 9:59:42PM | |
| $0.25 | Mathematics | slope | FULL WORK SHOWN
...n line so slope of the required line is -1/3 (because i... | Oct 07, 2009 at 9:54:09PM | |
| $0.25 | Mathematics | What slope of a line is parallel to the | FULL WORK SHOWN
... = 5 so y =3x -5 this is in the form of y = mx ... | Oct 07, 2009 at 9:51:03PM | |
| $1.00 | Mathematics | algebra subtracting polynomials | FULL WORK SHOWN
...3)a^2 + (3/5)a +6 =[1/4 -2/3]a^2 +[ ... | Oct 07, 2009 at 1:19:01PM | |
| $0.50 | Mathematics | what is the mean of $5,$8,$9,$14 | PLEASE SEE YOUR DETAILED ANSWER
...r of data is 4 so mean = ($5 $8 ... | Oct 06, 2009 at 8:55:54PM | |
| $0.25 | Mathematics | Find four consecutive integers such that | FULL WORK SHOWN
...(x+2)+(x+3) = 4x +6 so according to question 4x+ 6... | Oct 06, 2009 at 09:13:13PM | |
| $0.50 | Mathematics | Co-ordinates,Points and Lines | FULL WORK SHOWN
... =sqrt(85) length of side AC= sqrt[ (-4-1)^2 + ( 4-1)^2] =sqrt[25 +9] =sqrt(34) midpoint of the line joining (x1 ,y1) and (...... | Oct 06, 2009 at 08:51:41PM | |
| $0.50 | Mathematics | Calculus | DETAILED ANSWER( correct answer is 3x^2 +28x +59)
...2+x)( x^2 +12x +35) ... | Oct 05, 2009 at 1:00:05PM | |
| $0.25 | Mathematics | Calculus | correct answer is 6x + 6
... 3x^2 + 6x +5 so f'(... | Oct 05, 2009 at 12:56:05PM | |
| $3.00 | Mathematics | Please help me with finite math 25 questions | 100% CORRECT ANSWERS OF ALL 25 QUESTIONS
...t answers.if yo... | Oct 02, 2009 at 11:03:11PM | |
| $8.00 | Mathematics | Ch 13 Math 157 | ALL 15 QUESTIONS ANSWERED WITH FULL WORK ( ANSWERS HIGHLIGHTED)
...ect answers.if... | Oct 02, 2009 at 06:45:58PM | |
| $1.00 | Biology | heart disease | PLEASE SEE YOUR CORRECT ANSWER
...ecreased risk of ... | Oct 02, 2009 at 04:49:28PM | |
| $1.00 | Education | algebra?6-2x=10.what is the answer to th | PLEASE SEE YOUR STEP BY STEP SOLUTION
...> (-2x)(-1) = 4 (-1) (multiplying -1 both... | Sep 29, 2009 at 10:06:47PM | |
| $5.00 | Mathematics | please help me! write an equation in sta | PLEASE SEE YOUR COMPLETE STEP BY STEP SOLUTION
... 13y = -3x 2 so y = (-3/13)x (2/13) slope of this line is m =-3/13 now the required line is perpendicular to the given ... | Sep 29, 2009 at 9:55:45PM | |
| $2.00 | Mathematics | Equation of hyperbole | DETAILED SOLUTION OF c and d
...hyperbola is x^2/a^2 - y^2/b^2 =1 focii are ( ae , 0) and ( -ae , 0) ae =1 e =4/3 so a(4/3) ... | Sep 29, 2009 at 2:15:08PM | |
| $4.50 | Mathematics | Equation ellipsis | PLEASE SEE YOUR DETAILED SOLUTION OF ALL QUESTIONS
...e ( 0 , be) and ( 0 , -be) be =6 so 8e =6 so e = 6/8 = 3/4 we have a^2 = b^2 ( 1 -e^2) => a^2 =64( 1 -9/16) => a^2 = 28 eqn of the ellipse is x^2/28 + y^2/64 =1 d) case 1 eqn of the...... | Sep 29, 2009 at 1:57:43PM | |
| $0.25 | Mathematics | Please help with math question | PLEASE SEE YOUR DETAILED SOLUTION
... so k = x^(2/3) again y^(4/3) = n^2 taking square root both sides ... | Sep 29, 2009 at 12:49:12PM | |
| $3.00 | Mathematics | Equation of a parabola | FULL WORK SHOWN OF a , b , c , and d
...-4ax ( it is opening towards left) whose focus is (-a , 0) and peak is (0,0) comparing the above two equations 4a =6 so a = 3/2 so focus is ( -3/2 , 0) and peak i... | Sep 29, 2009 at 12:39:19PM | |
| $0.50 | Mathematics | Let (x) be defined as (x) = x^2 - x for | FULL WORK WITH DETAILED STEPS SHOWN
...in eqn(1) we get (a-2) so (a-2) = (a-2)^2 -(a-2) sin... | Sep 29, 2009 at 10:14:43PM | |
| $1.00 | Mathematics | hcf and lcm | PLEASE SEE THE DETAILED SOLUTION
...0 190 = 10 X 19 SO H... | Sep 29, 2009 at 02:34:52PM | |
| $0.50 | Mathematics | Calculus | PLEASE SEE YOUR COMPLETE STEP BY STEP SOLUTION
... x^2 -6x 5l derivative of f(x) =lxl is not... | Sep. 29, 2009 at 12:35:36AM | |
| $1.00 | Mathematics | Calculus | PLEASE SEE YOUR COMPLETE STEP BY STEP SOLUTION
...e test at x =4 f(4) = 4 -4 =0 left hand limit = lim ( x-> 4-) f(x) = lim ( x-> 4-) (x-4) =4-4 =0 right hand limit = lim ( x-> 4+) f(x) =lim ( x-> 4... | Sep. 29, 2009 at 12:28:43AM | |
| $10.00 | Mathematics | basic mathematical skills with geometry | ALL 50 QUESTIONS ANSWERESD WITH FULL WORK AND EXPLANATION
... .if you have a... | Sep. 28, 2009 at 05:30:23AM | |
| $10.00 | Mathematics | I need help with Math 117 Week 4 Q. 23 questions. | FULL WORK WITH DETAILED STEPS SHOWN OF ALL 23 QUESTIONS
... = 7[ (w+1 +w-1)/(w+1)(w-1)] = 14w/(w^2 -1) 12) (3+7z) 9 - 49z^2 = (3+7z)(3-7z) (3-7z) L.C.M is (9 - 49z^2) 13) (z-2)/(z-3) =1/(z-3) crossmultiplying (z-2)(z-3) =(z-3) so z^2 -5z + 6 -z +...... | Sep 26, 2009 at 2:18:30PM | |
| $0.50 | Mathematics | I need step by step help on how to solve | FULL WORK SHOWN
... + 8)( x+ 4 -8) =0 ( because a^2 - b^2 = (a+b... | Sep 26, 2009 at 01:53:14PM | |
| $8.00 | Mathematics | Please help me understand this calculus question | FULL WORK SHOWN ( how to find volume of the solid revolving around x axis and area between the regions)
... =(pi)integration of [(1/x^2) dx] (limit varies from 1 to 2) =(pi)(-1/x) ( limit varies from 1 to 2) =-(pi) ( 1/2 -1/) =(pi)/2 c... | Sep 25, 2009 at 05:12:05PM | |
| $3.00 | Mathematics | Math115 | STEP BY STEP SOLUTION WITH FULL WORK
... DETAILE... | Sep 24, 2009 at 10:47:36PM | |
| $5.00 | Mathematics | Please help me understand this calculus question | FULL WORK SHOWN TO BOTH THE QUESTIONS
... =(pi)(-1/x) ( limit varies from 1 to 2) =-(pi) ( 1/2 -1/) =(pi)/2 cubic units 2) y =e^x y = e^(-x) solving e^x = e^(-x) so x =0 so y = e^0... | Sep 22, 2009 at 11:12:35PM | |
| $0.25 | Mathematics | need answer | full work shown
... 6( 8-2) over 2 3 ... | Sep 22, 2009 at 10:36:33PM | |
| $0.25 | Mathematics | need answer | correct answer
...ver 2 ... | Sep 22, 2009 at 10:30:59PM | |
| $3.25 | Mathematics | need all these answers | ALL CORRECT ANSWERS
...4 = (2/9)x so (5/3)x -(2/9)x =-4 so (13/9)x =-4 so 13x =-36 so x =-36/13 5) (1.72... | Sep 22, 2009 at 10:13:27PM | |
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...ing (a+b)(a-b) = a^2 -b^2) =81t^2 -9 14) let height = h so base = (h+6) cm so area = (1/2)*(base)(height) =(1/2)(h+6)*(h) =(h^2+6h)/2 so (1/2)h(h+6) =36 so h^...... | Sep 06, 2009 at 9:22:02PM | |
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...osx*(cosx)]/(1+sinx)^2<br> <br> =[-sinx -sin^2x -cos^2x]/(1+sinx)^2<br><br> =[-sinx-(sin^2x + cos^2x)]/(1+sinx)^2<br> <br> =[-sinx -1]/(1+s... | Jun 22, 2009 at 11:25:59PM | |
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... +3a)] -3a[2 +b(4 -a)]<br><br> = 4[ a -2b -3ab]-3a[ 2 + 4b -ab]<br><br> = 4a -8b -12ab -6a -12ab +3a^2b<br><br> = 3a^2b -24ab -2a -8b<br><br>2) (7x^2...... | May. 18, 2009 at 12:31:28AM | |
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...<br> => 0 >(=) 6 (not true)<br><br> so 3 is not a solution<br><br>put x =6 in (1)<br><br> 6 -3 >(=) 6<br>... | May 17, 2009 at 10:04:23PM | |
| $1.00 | Mathematics | My number 15 | full work shown
...> 5r < 4r -27<br><br> => 5r -4r < 4r -4r -27<br><br> ... | May 17, 2009 at 09:58:16PM | |
| $1.00 | Mathematics | My number 12 | full work shown
...lt;(=) 3x + 5 -5 < 17 -5<br><br> => -15 <(=) 3x < 12<br... | May 17, 2009 at 09:53:51PM | |
| $4.00 | Mathematics | Linear Functions | question no 14 , 16 , 18 , 20 , 22 answered with full work and explanation
..., y2) is<br><br> y -y1 = [(y2 -y1)/(x2 -x1)] ( x-x1)<br><br> here x1 = 2 , y1 =-3, x2 = -3 , y2 =4<br><br> so eqn of the line is <br><br> y +3 = [...... | May 17, 2009 at 08:59:06PM | |
| $1.00 | Mathematics | Help help me understand this algebra pro | full work shown
...ultiplying both sides by -1<br><br> (-1)... | May 16, 2009 at 9:24:58PM | |
| $10.00 | Mathematics | math | full work shown ( except 3)
...A - B = { 1,4}<br><br> B -A = {5} ( it is a set of elements present in B not in A)<br><br> SO A -B is not equal to B -A<br><br>b) { r , s , t ,.....z} is a...... | May 16, 2009 at 1:33:29PM | |
| $1.00 | Mathematics | Derrick is thinking of a negative intege | full work with explanation shown
...0 =0<br><br> => x^2 +15x -12x -180 =0<br><br> => x( x +15) -12( x+15) =0<br><b... | May 16, 2009 at 1:00:49PM | |
| $0.50 | Business | what is 29,746 multiply by 0.022 | full work shown
...29,746 multiplied by 0.022<b... | May 16, 2009 at 12:44:22PM | |
| $0.75 | Mathematics | make y the subject of the formula5x+3y | full work shown
... => 3y = 7 -5x<br><br> dividing both s... | May 16, 2009 at 10:37:04PM | |
| $3.00 | Mathematics | MATH 117 Week 7 DQ1 | full work with explanation shown
...r> => x^2 -7x -6x +42 =0<br><br> => x^2 -1... | May 16, 2009 at 01:15:23PM | |
| $1.00 | Mathematics | The perimeter of a rectangular garden is | full work with explanation shown
...x+y) m<br><br>so 2(x+y) =60<br><br> => (x+y) =30---------(eqn1)<br><br>area =lenght*width<br>... | May. 16, 2009 at 12:14:21AM | |
| $3.00 | Mathematics | real and imaginary number help | full work with explanation shown to all 3 questions
... => t^2 -5t +4 =0<br><br> => t^2 -4t -t +4 =0<br><br> => t( t -4) -1(t -4) =0<br><br> =>(t-1)( t -4) =0<br><br> so t =1 or 4<...... | May 15, 2009 at 10:01:06PM | |
| $3.00 | Mathematics | Find the slope for each line that has a | full work and explanation shown to all 5 questions
... y intercept( 0,c) is y = mx +c<br><br>here we put the eqn into the above form to find slope<br><br> 4x -y =7<br><br> => y = 4x -7<br><br> ...... | May 15, 2009 at 9:04:22PM | |
| $1.00 | Mathematics | find the slope of the line passing thruo | full work with explanation shown
...slope of the line is (3-4)/(1-3)<br><br> =1/2<br><br>so e... | May 15, 2009 at 8:40:26PM | |
| $1.00 | Mathematics | Find the zeros of the polynomial functio | full work with explanation shown
...) -6(x+7)] =0<br><br> => x[ (x+7)(x -6)] =0<br><br> so x =0 or (x+7) =0 or (... | May 15, 2009 at 8:36:28PM | |
| $1.00 | Mathematics | 3x-4y+9 whenx=2 and y=5 | A + answer with full work shown
...9<br><br> = 6 -20 +9<br><br> ... | May 15, 2009 at 1:28:30PM | |
| $0.25 | Mathematics | arrange the numbers 1 to 8 so the sums a | A + answer
...=8 , f =5, g =7 ... | May 15, 2009 at 1:26:07PM | |
| $0.75 | Mathematics | what is 9.5% of 20? | A + answer with full work
...<br> so (9.5)% of 20= (95/1000)*20<br><br> ... | May 15, 2009 at 01:37:07PM | |
| $0.75 | Mathematics | what is 9.5% of 20? | full work with explanation shown
...<br><br> =95/1000<br><br> ... | May 15, 2009 at 01:31:27PM | |
| $1.00 | Mathematics | probability 8-23,25,27 | full work shown for first two questions
... = 1/17 =.059<br><br> 25)total face cards are 12<br>... | May 14, 2009 at 1:15:42PM | |
| $1.00 | Mathematics | Simplify (2x+3)(x-4)=? if you know the a | full work shown
...roperty)<br><br> = 2x^2 -2... | May 14, 2009 at 12:58:21PM | |
| $2.00 | Mathematics | probablity 8-15,17 | full work shown
... 7 c 1)/(11 c 3)<br> = (4!/2!*2!)*7/(11!/3!*8!)<br> = 14/55 =0.255<br><br>B) 2 green balls out of 5 gre... | May 14, 2009 at 12:55:27PM | |
| $2.00 | Mathematics | combinations 8-1,2,3 | step by step solution
...rrange.<br><br>arrangement means permutation.<br> so 2 pictures out of 5 pictures can be arranged in (5 p 2 )ways <br><br> = 5!/(5-2)! (because n p r = n!/(n-r)!)<...... | May 14, 2009 at 12:40:37PM | |
| $1.00 | Mathematics | Let c^ be defined for all real values of | full work with explanation shown
...br> 3 - c^ =c-----------(eqn2)<br><br> we put the value of c^ from eqn... | May 14, 2009 at 08:58:18PM | |
| $0.25 | Mathematics | One more math question | full work shown
... => 4y =3<br><br> dividing both sid... | May 14, 2009 at 07:51:09PM | |
| $0.25 | Mathematics | Need basic math help | full work shown
...ind the value of y<br><br> => 32y =8<br><br> => 8*4*y =8 ... | May 14, 2009 at 07:14:50PM | |
| $1.00 | Mathematics | Story Problem | full work with explanation shown
... 300y = 250<br><br> => x +60y =50-----------(eqn1)( dividing both sides by 5)<br><br> for second time <br><br> for 1 day fee is $x<br><br> so for...... | May 14, 2009 at 07:11:22PM | |
| $0.25 | Mathematics | Complete Multiplication Equation | here are the steps
... we find the value of y<br><br> so(1/6) x y =... | May 14, 2009 at 06:42:10PM | |
| $5.00 | Mathematics | Math homework questions | full work with explanation shown
... ( x+3) =0<br><br> so 2x =1<br> => x =1/2<br><br> x+3 =0<br><br> => x =-3<br><br> solutions are -3 or 1/2<br><br> using...... | May 13, 2009 at 10:05:11PM | |
| $1.00 | Mathematics | simplify 2x(x2-6x)?????????????????????? | full work shown
...)<br><br> = 2*x*x*x -2*6*x*x (bec... | May 13, 2009 at 9:33:14PM | |
| $6.00 | Mathematics | integrals as volumes | full work shown to question no 1
...nt.[ 4x^4 +x^6 -4x^5] dx ( 0 to 2)<br><br> = pi* [ (4/5)*x^5 +x^7/7 -(4/6)*x^6] ( o to 2)<br><br> = pi* [128/5 +128/7 -128/3]<br><br> = pi*(128... | May 13, 2009 at 02:37:06PM | |
| $0.50 | Mathematics | ALGEBRA | A + answer
...A)log ... | May 13, 2009 at 01:46:18PM | |
| $0.50 | Mathematics | solve x + 2 < 7. graph the solution | full work shown
...h sides)<br><br> => x < 5<br><br> so x be... | May 13, 2009 at 01:09:34PM | |
| $0.50 | Mathematics | solve x + 2 < 7. graph the solution | full work shown
...5<br>solution is x belongs to ... | May 13, 2009 at 01:06:46PM | |
| $1.00 | Mathematics | tangent line | full work shown
...<br> differentiating both sides with respect to x we get<br><br> x*dy/dx +1*y +1 =0<br>... | May 12, 2009 at 11:33:49PM | |
| $1.00 | Mathematics | tangent line | full work shown
.../dx =0<br><br> => dy/dx( 2x +1) =2 -2y<br><br> => dy/dx = (2-2y)/(2x +1)<br><br> this is the slope ... | May 12, 2009 at 11:18:19PM | |
| $0.75 | Mathematics | evaluate dy/dt | full work shown
...oth sides with respect to t we get<br><br> d/dt(x) * y^2 + x... | May 12, 2009 at 11:12:11PM | |
| $1.00 | Mathematics | area between x-axis | full work with explanation shown
...t varies from -2 to3)<br><br> = int.[ (e^x )-1] dx (-2 to3)<br><br> ... | May 12, 2009 at 10:26:29PM | |
| $1.00 | Mathematics | definite integral | full work with perfect explanation shown
... +1 =1<br><br> when x =2, t = 2^2 +1 =5<br><br> so the integral becomes<br><br> int.[ (t^5)(1/2) dt] ( ... | May 12, 2009 at 10:19:32PM | |
| $1.00 | Mathematics | trapezoidal rule | full work shown
.../n<br><br> = (1+1)/4<br><br> =1/2 = 0.5<br><br> so x0 = -1,y0 = f(x0) = (-1)^2 +6 = 7<br><br> x1 = x0 +h = -0.5 , ... | May 12, 2009 at 10:01:31PM | |
| $0.50 | Mathematics | what is the reciprocal of 3/4 | detailed answer
... of x/y is ... | May 12, 2009 at 9:46:02PM | |
| $1.00 | Mathematics | difference quotient | full work shown
...+h) = 2/(x+h)<br><br> now [f(x+h) - f(x)]/h<br><br> = [ 2... | May 12, 2009 at 9:44:49PM | |
| $1.00 | Mathematics | definite integral | full work with explanation shown
...ation of[(x+4)^3 dx] ( limit varies from 0 to 4)<br><br> = [(x+4)^(3+... | May 12, 2009 at 9:34:27PM | |
| $2.00 | Mathematics | 02) more limit.... (use derivative) | full work shown using derivative
...0 form)<br><br> = lim ( x-> 0) [ -25 cos (5x) +25]/24x^2 ( 0/0 form)<br><br> =lim ( x-> o)[ 125 sin (5x)]/48x ( 0/0 form)<br><br> = lim ( ... | May 12, 2009 at 1:56:51PM | |
| $2.00 | Mathematics | more limit | full work shown using derivative
...0) sin(x)/x =1)<br><br><br> =7/2 (answer)<br><br>2) lim( x-> infinity) sqrt( x^2 +2)/sqrt( 2x^2 +1)<br><br> = lim ( x-> infinity)[ x*... | May 12, 2009 at 1:32:22PM | |
| $1.00 | Mathematics | Evaluate the definite integral. | full work shown
... x-28) = u<br><br>dx = du<br><br> if x = 28 , u =0<br><br> if x =29 , u = 1<br><br> so the integral... | May 12, 2009 at 1:00:54PM | |
| $2.00 | Mathematics | limit.... 3 questions | full work shown to all 3 questions
...ultiplying and dividing by 7)<br><br> = 7* lim ( t-> 0) [ e^(7t) -1]/(7t)<br><br> = 7* 1 ( since lim( x-> 0)( e^x -1)/x =1)<br><br> =7 (answer...... | May 12, 2009 at 12:52:11PM | |
| $1.50 | Mathematics | max/min using derivative | full work shown
...> => 20x =22<br><br> => x =22/20<br><br> =11/10<br><br> d^2S/dx^2 = 20 >0<br><br> at x =11/10 , d^2S/dx^2 is positive.<br>...... | May 12, 2009 at 12:19:39PM | |
| $2.00 | Mathematics | Abstract Algebra - Factorization of p(z) over the complex numbers | full work shown
...) is a factor.<br><br>z^3 -iz^2 +3iz +3<br><br> = z^... | May 12, 2009 at 11:23:06PM | |
| $5.00 | Mathematics | Write the equation of a line in slope-in | full work with all explanations shown
...br> here m = 2/3, c = -4<br> so equation of the line is<br><br> ... | May 12, 2009 at 11:15:45PM | |
| $0.50 | Mathematics | What is the solution of the equation2r | full work shown
...<br> => 29r = 116<br><br> => r =116/29<br><br> =4<br><br> so r =4<br><br>put the value of r in eqn(1) to g... | May 12, 2009 at 01:16:44PM | |
| $5.00 | Mathematics | i need help with the questions: radical | full work shown
.../sqrt(3)<br><br> 4)radical (54x)/x<br><br> = sqrt(54x)/x<br><br> = sqrt(54)* sqrt(x)/x<br><br> = (sqrt(9*6)* sqrt(x))/(sqrt(x)*sqrt(x))<br>...... | May 11, 2009 at 10:42:00PM | |
| $1.00 | Mathematics | Help me with this algebra1 | step by step solution to 7x^2 -50 =13
...y 7)<br><br> => x^2 = 9<br><br> => x^2 -9 =0<br><br> => x^2 -3^2 =0<br><br> ... | May 11, 2009 at 10:21:20PM | |
| $1.00 | Mathematics | Solve each system by elimintion.5)3x | solution by ellimination ( 3x -y =8 and 4x + y =6)
...32 (eqn3)<br><br>multiply eqn(2) by 3<br><br>so 12x + 3y =18 (eqn4)<br><br>so eqn(3) - eq... | May 09, 2009 at 9:17:07PM | |
| $0.25 | Mathematics | substitution | full work shown
...) to get<br><br> x + 3 =0<br><br> => x... | May 09, 2009 at 9:10:35PM | |
| $1.00 | Mathematics | Need help understanding the MAT116 week 8 concept check question | detail explanation
...ight line between -4 to 10 including the two... | May 08, 2009 at 10:29:46PM | |
| $1.00 | Mathematics | What is x equal to? 7x+8=11.5+2x | A + answer with full work shown
...h sides)<br><br> => 7x = 3.5 +2x<br><br>=> 7x -2x = 3.5 +2x -2x (subtracting... | May 08, 2009 at 9:31:59PM | |
| $0.75 | Mathematics | total of 96 people= there were 5 times as many parents as bus drivers; the number of boys was 3 times the number of pare | fully explained solution
.... of girls = 15x -12<br><br> total people = ( x + 5x +15x +15x -12)<br><br> = 36x... | May 08, 2009 at 12:52:22PM | |
| $0.50 | Mathematics | Algebra | full work shown
...<br><br> here slope m1 =-4/5<br><br>5x -4y =9<br><br> => 4y = 5x -9<br><br> => y... | May 08, 2009 at 09:59:32PM | |
| $1.00 | Mathematics | the width of a rectangle is 14 centimete | full work with explanation shown
...<br><br> width = 14cm<br><br> so perimeter = 2 ( length + width)<br><br> ... | May 08, 2009 at 09:53:17PM | |
| $16.00 | Mathematics | Calculus part 2 for bibhupada only! | all questions answered with full work and explanation except first two
...oduct of the two numbers P (say) is x*y<br><br> so P = x*sqrt[ 16 -x^2] (putting the value of y)<br><br> differentiating both sides with...... | May 08, 2009 at 08:55:14PM | |
| $1.00 | Health-Care | What is the answer to this problem? (1-(-1)^2)^2 +3*3 | full work shown
...<br> if the question is <br><br>[ 1-(-1)^2]^... | May 08, 2009 at 02:18:33PM | |
| $1.00 | Mathematics | rational exponents & radicals 2 | A + answer with full work shown
...x +5 = 3x -1 +2*sqrt(3x -2)<br><br> => 2x +5 -3x +1 = 2*sqrt(3x -2)<br><br> => 6-x = 2*sqrt(3x-2)<br><br> again squaring both sides<br><br> (6...... | May 08, 2009 at 01:27:21PM | |
| $1.00 | Mathematics | Rational exponents & radicals | sqrt( x-1) = 2 - sqrt(x) ( solution with full work)
...ring both sides <br><br> [sqrt(x-1)]^2 =[ 2-sqrt(x)]^2<br><br> => (x-1) = 2^2 +(... | May 08, 2009 at 01:13:07PM | |
| $0.50 | Mathematics | Simple stat question!! APSP PLSSSSSSSS | correct answer
...9<br><br> minimum data is 52<br><br> ... | May 07, 2009 at 11:34:23PM | |
| $0.50 | Mathematics | -13/17 + 4/n - 4/17=0 | full work shown
...17( 13 +4) +4/n =0<br><br> => -(17/17) +4... | May 07, 2009 at 11:20:09PM | |
| $0.50 | Mathematics | How can this expression | detailed simplification
... 4+4) =8<br><br>so (2x(4+4) +2)/9 -... | May 07, 2009 at 9:54:05PM | |
| $0.50 | Mathematics | abswer (2 x (4 + 4) + 2) / 9 - 1 | correct answer with full work
...x ( 4 +4) +2)/9 -1<br><br>... | May 07, 2009 at 9:51:16PM | |
| $1.00 | Mathematics | help me | full work with explanation shown
...umber<br><br> so the two digit number is 10x +y<br><br> from question x + y =5 (eqn1)<br><br> digits are reversed means y ... | May 07, 2009 at 2:21:53PM | |
| $1.00 | Mathematics | help me 2 | full work with explanation shown
... => -47x +25y =31<br><br> putting y =3x -1 we get<br><br> -47x +25( 3x -1) =31<br><br> => -47x +75x -25 =31<br><br> => 2... | May 07, 2009 at 2:13:58PM | |
| $20.00 | Mathematics | Calculus part 1 for bibhupada only! | all questions answered with full work and explanation
... you. please ... | May 07, 2009 at 09:33:49PM | |
| $1.00 | Mathematics | i need help please | full work shown using quadratic formula
... =0<br><br> then x = [-b (+ or -)sqrt( b^2 -4ac)]/2a<br><br> here a =2 , b =1 , ... | May 07, 2009 at 02:42:12PM | |
| $3.00 | Mathematics | Math 114 Systems by Substitution | full work shown to all 7 questions by method of substitution
...substitute the value of y =4x from eqn(2) in eqn(1)<br><br> so 2x +4x =18<br><br> => 6x =18<br><br> => x =3<br><br> put x =3 , in eqn(2) to...... | May 07, 2009 at 01:52:52PM | |
| $0.50 | Mathematics | 3n=9-2n what does n=? | full work shown
...es)<br><br> => 5n =9<br><br> => (5n/... | May. 07, 2009 at 12:14:28AM | |
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... to2)<br><br> = [x^4 -x] ( 0 to 2)<br><br> ... | May. 07, 2009 at 12:11:11AM | |
| $0.50 | Mathematics | calculus | full work shown
...<br><br>put 9 ln(x) =t<br><br> 9*(1/x) dx = dt<br><br> ... | May 06, 2009 at 11:40:31PM | |
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... => e^(2y) dy = e^(2x) dx<br><br> integrating bo... | May 06, 2009 at 11:24:54PM | |
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...ethod of byparts)<br><br> =4[-pi cos(pi) +... | May 06, 2009 at 11:20:39PM | |
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...*( 1-3x)^(-1)<br><br> = x^2[ 1 +(3x) + (3x)^2 +(3x)^3... | May 06, 2009 at 10:40:06PM | |
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...o area = int. [ 2x dx] ( 0 to 2) - int. [ x^2 dx] ( 0 to 2)<br><br> = x^2 ( 0 t... | May 06, 2009 at 10:24:58PM | |
| $1.00 | Mathematics | Evaluate the integral. | full work shown
...13/x)] dx ( 16 to 25)<br><br> = sqrt(13) * int. of[ dx/sqrt(x)] dx ( 16 to 25)<br><br> = sqrt(13) *int... | May 06, 2009 at 9:13:26PM | |
| $1.50 | Mathematics | i need help | full work with explanation
...*(2p) -6*(3q) -6*(8r)<br><br> ... | May 06, 2009 at 11:30:19PM | |
| $1.00 | Mathematics | i need help | full work shown
... - 4*(2y) +4*(6z) (usi... | May 06, 2009 at 11:24:27PM | |
| $1.50 | Mathematics | tangent line | full work with explanation shown
...,0)<br><br> slope at (6 ,0) is 3*(6)^2 -16*6 +12 ( putting x =6 in the slope)<br><br> = 108 -96 +12<br><br> =24<br><br> now we... | May 06, 2009 at 03:48:53PM | |
| $1.00 | Mathematics | math question to solve with full detail!!! | detailed explanation with full work shown
...2/3 +3/2)] *[ b^(1/2 +2/3)]<br><br> (since x^a*x^b = ... | May 06, 2009 at 03:38:58PM | |
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...d 1/2 is y^3/2)<br><br> =[ y^(1/2 +3/... | May 06, 2009 at 03:31:35PM | |
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... = (5^2)^(1/2)* (a^12)^(1/2) * (b^8)^(1/2) *(c^12)^(1/2)<br><br> = [5^(2*1/... | May 06, 2009 at 03:27:34PM | |
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... *4*2*2 -16 -6 +6<br><br> =(+1)*16 ... | May 05, 2009 at 11:36:49PM | |
| $0.50 | Mathematics | Calculus 4 | full work shown
... have<br><br> f(x) = 3*x^3/3 +2*x^(-2+1)/(-2+1) -x +c <br><br> so f(x) = x^3-(2/x) -x +c (eqn... | May 05, 2009 at 11:20:09PM | |
| $0.50 | Mathematics | Given this......Find this.....where did I go right or wrong? | full work shown for part(a)
...1<br><br> = ... | May 05, 2009 at 11:10:06PM | |
| $1.00 | Mathematics | calculus 1 | full work shown
... <br> =-(x-2) , if x<2<br><br> =0 , if x =2<br><br> so int.[/x-2/ dx] ( 0 to 3)<br><br> = int.... | May 05, 2009 at 10:59:55PM | |
| $3.00 | Mathematics | Math immediate help needed | full work and explanation shown
.../3)<br><br> = 1/3^1<br> =1/3<br><br>3) 4th root radical of [x^16*y^12/y^(-4)]<br><br> = 4th root radical of [x^16*y^(12+4)]<br><br>...... | May 05, 2009 at 10:11:49PM | |
| $3.00 | Mathematics | Radicals | full work and explanation shown
...-2) =+7<br><br> x = 7 +2 =9<br><br> if (x-2) =-7<br><br> => x =-7 +2 =-5<br><br> so x =-5 or 9<br><br>2) (11x -5)^2 =12<br>&l...... | May 05, 2009 at 9:41:07PM | |
| $0.50 | Mathematics | Help me understand this algebra problem | full work and explanation
... put m =5n<br><br> so the equation becomes<br><br> 2*(5... | May 05, 2009 at 9:22:37PM | |
| $3.00 | Mathematics | radicals and imaginary numbers | full work and explanation shown
...x-3)(x+1) =0<br><br> (x-3) =0 or (x+1) =0<br><br> if (x-3) =0 , x=3<br><br> if (x+1) =0 , x =-1<br><br> so x = -1 or 3<br><br>...... | May 05, 2009 at 9:18:31PM | |
| $0.50 | Mathematics | number 12 | full work shown
...en the points ( x1 , y1) and ( x2 , y2) is<br><br> sqrt[ ( y2 -y1)^2 +(x2... | May 05, 2009 at 1:21:05PM | |
| $0.25 | Mathematics | number 11 | full work shown using quadratic formula
... + or -) sqrt( b^2 -4ac)]/2a<br><br> here a =1, b =5 , c =2<br><br> ... | May 05, 2009 at 1:17:22PM | |
| $0.50 | Mathematics | number 11 | solution using quadratic formula
... = [-5 (+ or -) sqrt(25 -8)]/2<br><br> = [-5 (+ ... | May 05, 2009 at 1:12:29PM | |
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... i^16 * i<br><br> = (i^2)^8 *i<br><br> = ... | May 05, 2009 at 12:59:53PM | |
| $0.25 | Mathematics | number 17 | full work shown
... +3*x =1+4x<br><br> => 5x -5 -6 +3x = 1+4x<br><br> => 8x -11 =1+4... | May 05, 2009 at 12:55:59PM | |
| $0.25 | Mathematics | number 20 | full work shown
...)^2 -(5y)^2<br><br> ... | May 05, 2009 at 12:51:34PM | |
| $0.25 | Mathematics | number 15 | detailed factorisation
... x[ 2x( 3x +2) -1( 3x +... | May 05, 2009 at 12:46:52PM | |
| $0.25 | Mathematics | number 13 | full work shown
...parallel, then their slopes are equal)<br><br> so eqn of the reqd line in point slope ... | May 05, 2009 at 12:44:58PM | |
| $0.25 | Mathematics | number 12 | detailed answer with full work
... 2<br><br> y1 =3<br><br> x2 =-1<br><br> y2 =-1<br><br> so ... | May 05, 2009 at 12:41:21PM | |
| $0.25 | Mathematics | number 5 | detailed solution using quadratic formula
... c =0, then <br><br> x = [-b (+ or -) sqrt( b^2 -4ac)]/2a<br><br> x^2 +2x +... | May 05, 2009 at 12:38:23PM | |
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...e slope of the line.<br><br>here slope m =-3/4<br><br> so slope of... | May 05, 2009 at 02:25:03PM | |
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...[ 25 +4]<br><br> = sqrt[29]<br><br> =5.38<br><br>18) (x1 , y1) = (-2 ,-1)<br><br> (x2 , y2) = (3 , -3)<br><br> ...... | May 05, 2009 at 01:59:04PM | |
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...<br><br><br>c)now we find constraints.<br><br> for item A total buying cost is $5x1<br><br> for item B total buying cost is$ 3x2<br><br> for...... | May 05, 2009 at 01:20:00PM | |
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...0...........(4)<br>7y1 +2y2 +3y3 -z =0 ......(5)<br> first we write the augmented matrix(means just write the coefficients of x1 and x2 from the above 5 equations)<br><br>...... | May. 05, 2009 at 12:46:22AM | |
| $5.00 | Mathematics | 488/1000 simplify thisFULLY | full simplification
...88 = 2 *2 *2 *61<br><br> 1000 = 2*2*2*5*... | May 04, 2009 at 11:41:30PM | |
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...) =0<br><br> => (x-8)(x+2) =0<br><br> either (... | May 04, 2009 at 11:18:08PM | |
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...lack variable s1<br><br> so x1 +x2 +x3 +s1 =90 (eqn1)<br><br>2x1 +5x2 +x3 <(=)120<br><br> we add slack variable<br><br> 2x1 +5x2 +x3 +... | May 04, 2009 at 11:12:03PM | |
| $1.00 | Mathematics | Simplify an Equation | step by step simplification for reh1963
...-v)(u+v))<br><br> = [(u+v)^2 -(u-v)^2]/(u+v)(u-v)<br><br> = [u^2+v^2+2uv -u^2-v^2+2uv]/(u+v)(u-v)<br><br> = 4uv/(u+v)(u-v)<br><br> now we simpli... | May 04, 2009 at 10:26:29PM | |
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... that is 4 , 6 , 8 , 10 , 12 , 14 , 16,..... <br>here all 4,6,8,10,12,.... are divisi... | May 04, 2009 at 10:12:04PM | |
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... = 4x +2<br><br>=> 6*(2x) -6*5 =4x +2 (applying distributive prop... | May 04, 2009 at 10:03:10PM | |
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...<br> => 4x =4<br><br> => x =1<br><br> again we substitute the value of x... | May 04, 2009 at 12:24:29PM | |
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...he denominators are same , equating the numerators both sides we get<br><br> A*(x-3) +B = 3x (eqn1)<br><br> put x =3 in eqn(1)<br><br> so A*(3-3) +B ... | May 04, 2009 at 08:04:07PM | |
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...r of (y^2 +2y -3)<br><br> = [5y/(y-1)]/(y^2 +2y -3... | May 04, 2009 at 01:02:11PM | |
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... =x and y =4 in 3x +2y =14<br><br> so 3x +2*4 = 1... | May 03, 2009 at 10:24:47PM | |
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...<br> 2/3 = 2*4/4*3 = 8/12<br><br> 3/4 = 3*3/4*3 = 9... | May 03, 2009 at 9:32:49PM | |
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...the given line<br><br> slope of the required line is also (7/5)<br><br> so eqn of the ... | May 03, 2009 at 05:43:30PM | |
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... y intercept.<br><br> here y = (3.9)x -... | May 03, 2009 at 05:35:50PM | |
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...( x -x1)<br><br> here ( x1 , y1) = ( 6 ,0)<br><br> ... | May 03, 2009 at 05:11:25PM | |
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...x^2 -6x +5x -15)<br><br> = -[2x( x-3) +5( x-3)... | May 02, 2009 at 9:26:53PM | |
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...4x +62 = 90<br><br> => 14x = 28<br><br> => x = 2 degree<br><br> so measure of each angle is 9x = 18 degree<br><br> and 5x + 62 = 10 +62<br...... | May 02, 2009 at 02:23:07PM | |
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| $2.50 | Mathematics | Calculus - Definite Integral of Trig Function | step by step solution with full work shown
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...+2c +2c +4<br><br> = ... | May 01, 2009 at 12:13:00PM | |
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... variable( because pivot element lies in that row)<br><br>write R1 = R1 -R2<br><br> R3 = R3 +5R2<br><br> so the tableau becomes<br><br> 0 0 5/2...... | May 01, 2009 at 08:31:45PM | |
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...ies)<br><br> to replace the inequalities to equalities.<br><br> and we rewrite the objective function<br>z =5x1 +3x2 as<br><br> z -5x1 -3x2 =0<br>...... | May 01, 2009 at 02:38:36PM | |
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... 0 1<br><br> 0 0 0<br><br> 0 0 0] ( it is a non zero matrix)<br><br>B^2 = [ 0*0 +0*0 +1*0 0*0+0*0+1*0 0*1+0*0+1*0<br>...... | Apr 30, 2009 at 10:10:22PM | |
| $1.00 | Mathematics | PLEASE HELP!!! Totally lost (Math 116) Want how you came to get the answer | detailed answer with steps shown
...7) (dividing both sides by 7)<br><br>=> ... | Apr 30, 2009 at 9:53:22PM | |
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... either (3x +1) =0 or (x+1) =0<br><br> if (3x +1) ... | Apr 30, 2009 at 9:35:34PM | |
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...gle are unequal.<br><br> but in case of a... | Apr 30, 2009 at 1:42:04PM | |
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...<br> = x^(2+2+2+2)/12... | Apr 30, 2009 at 02:30:00PM | |
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... => t(9t -19) +2( 9t -19)<br><br> => ( 9t ... | Apr 30, 2009 at 01:49:34PM | |
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...1) e^(x^2) dx dy<br><br> here y is fixed and x changes from y/2 to 1<br><br> when the order is reversed x is held fixed on 0 to 1 <br><br> ... | Apr 30, 2009 at 01:14:40PM | |
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... of sqrt[ 1 +(dz/dx)^2 +(dz/dy)^2] dx dy<br><br> = int. int. 2/sqrt(4 -x^2 -y^2) dx*dy<br><br>cylinder is x^2 +y^2 =1<br><br> put x = r cos (th... | Apr. 30, 2009 at 12:41:54AM | |
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...(3) - eqn(4) is<br><br> 13y = 5.07<br><br> so y = 5.07/13<br><br> =0.39<br><br>from eqn(1) 4x +5y =6.71<br><br> => 4x +5...... | Apr. 29, 2009 at 11:16:50AM | |
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...+2)<br><br> square of the largest number is ( x+4)^2<br><br> from question<br><br> x(x+2) = (x... | Apr. 29, 2009 at 10:40:28AM | |
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...n a circle.<br><br> radius of the circle is 5cm<br><br> diameter of the corcle is the diagonal of the rectanglular polygon<br><br> join the center of the circle...... | Apr. 29, 2009 at 03:01:47AM | |
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...<br><br> => 6x +12 = 30<br><br> => 6x = 18<br><br> => x =3<br><br>4)-2x +6 +5(x+1) =-5x +3<br><br> => -2x +6 +5x +5 =-...... | Apr 28, 2009 at 11:17:58PM | |
| $0.75 | Mathematics | can you please help me with the equation 90% of 20 | detailed answer with steps shown
...= 9/10 of 20<br><br> ... | Apr 28, 2009 at 10:09:02PM | |
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...00 = 9/10<br><br> so 90% ... | Apr 28, 2009 at 10:07:26PM | |
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...n that area =22 cm squared<br> so 3x^2 +5x =22<br><br> => 3x^2 +5x -22 =0<br><br> => 3x^2 +11x -6x -22 =0<br><br> => x( 3x +11)-2(...... | Apr 28, 2009 at 9:39:59PM | |
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...<br><br> if (3x +7) =0 ,x = -7/3<br><br> so roots are 3 , -7/3<br><br>2) x^2 +2x -15 =0<br><br> => x^2 +5x -3x -15 =0<br><br>...... | Apr 28, 2009 at 1:39:20PM | |
| $1.00 | Mathematics | 05) Limit f(x) | detailed steps shown
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...s = 16 +15s +12<br><br> => 22s =15s +(16 +12)<br>... | Apr 28, 2009 at 07:12:19PM | |
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...(3) is<br><br> 3x -2x =10 -6<br><br> => x =4<br><br> putting x =4 in eqn(2)<br><br> 4 -4y =3<br><br> => 4y =1<br><br> ...... | Apr 28, 2009 at 07:08:17PM | |
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...^2)/64<br><br> 0.695 = (80 -a^2)/64<br><br> => 64(0.695) = 80 -a^2<br><br> => 44.46 =80 -a^2<br>... | Apr 27, 2009 at 11:12:20PM | |
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...<br><br> so in 7 weeks it grows (7*6) =42 inches... | Apr 27, 2009 at 9:49:18PM | |
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...+10y *dy/dx =0<br><br> => 10y*dy/dx =-6x<br><br> => dy/dx =-6x/10y<br><br> = -3x/5y<br><br> this... | Apr 27, 2009 at 9:45:12PM | |
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... ( x , y)<br><br> we find slope of the tangent at (3,1)<br><br> so slope of the tangent at (3 ,1) is<br><br> -3*3/... | Apr 27, 2009 at 9:37:56PM | |
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... +2x -10 =0<br><br> so x(x-5) +2( x-5) =0<br><br> ... | Apr 27, 2009 at 11:05:09PM | |
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...<br> => (2x +1) = x^2 -2<br><br> => x^2 -2x -3 =0<br><br> => x^2 -3x +... | Apr 27, 2009 at 10:16:54PM | |
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...or minimum put p'(x) =0<br><br> so (100- 12x^2)/(3x^2 +25) =0<br><br> => 100 -12x^2 =0<br><br> => 12x^2 =100<br><br> => x^2 =100/12<br...... | Apr 27, 2009 at 08:42:59PM | |
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...) is <br><br> 6x +15y =-72 (eqn5)<br><br>5*eqn(2) is<br><br> -25x +15y = 145 ... | Apr 27, 2009 at 01:18:32PM | |
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...) is<br><br> y -y1 = [(y2 -y1)/(x2 -x1)](x-x1)<br><br> here (x1 ,y1... | Apr 26, 2009 at 9:04:33PM | |
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...2<br><br> = e^x[ 2x -x^2]/(e^x)^2<br><br> =( 2x -x^2)/e^x<br><br> this is the slope of the tangent to the curve at (x , y)<br><br> we...... | Apr 26, 2009 at 8:31:33PM | |
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...fferentiating both sides with respect to x we get<br><br> dy/dx = 4* d/dx(x) - d/dx[ x * ln(x)]<br><br> ... | Apr 26, 2009 at 8:19:50PM | |
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... 8 -5<br><br> = 9*(-5) - 8*(... | Apr 26, 2009 at 12:59:21PM | |
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...2) we get<br><br> -3x +4(-5) =-21<br><br> => -3x -20 =-21<br><br> => -3x =-1<br><br> so 3x =1<br><br> => x =1/3<br>... | Apr 25, 2009 at 10:05:20PM | |
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...<br> cofactor of 2 is -6<br><br> cofactor of 4 is -3<br><br> cofactor of 0 is 0<br><br> cofactor of 1 is -12<br><br> cofactor of -2 is 6<b...... | Apr 24, 2009 at 10:16:20PM | |
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...1/8)*[ -2 -2<br><br> -3 1] * [16<br><br> 120]<br><br> = -(1/8)*[-32-240<br><br> -...... | Apr 24, 2009 at 9:47:26PM | |
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... diagonal to 0<br> write row1 = row1 +(2/5)*row2<br><br> =[ 1 -6/5 0 -3 +24/5<br><br> -3 -5 12]<br><br><br> = [ ... | Apr 24, 2009 at 1:59:53PM | |
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...<br><br> 0] * [ 1 3 -4]<br><br> = [6*1 6*3 6*(-4)<br><br> 1*1 1*3 1*(-4)<br><br> 0*1 0*3 0*(-4)]<br><br> =[...... | Apr 24, 2009 at 1:37:33PM | |
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...6] = [ 4 6]<br><br> by equality of two matrices <br><br> y =4<br><br> similarly<br> [ 5 z] is a row matrix and its size is... | Apr 24, 2009 at 12:48:08PM | |
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...or - sqrt( b^2 -4ac)]/2a<br><br> here a =1 , b =2 , c =-24<br><br> so x = [-2 (... | Apr 24, 2009 at 09:55:38PM | |
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...<br> 1) x + y < -5 ,then ( -4 , -3) satisfies the inequality... | Apr. 24, 2009 at 12:34:05AM | |
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| $0.50 | Mathematics | solving for x | complete step by step solution
...-4x +3x -12 =0<br><br> => x(x-4) +3(x-4) =0<br>... | Apr 23, 2009 at 9:02:01PM | |
| $1.00 | Mathematics | solve x in this linear equation 10+3x=2( | step by step solution
...3 +2*(4x) +5<br><br>=> 10 +3x =6 +8x... | Apr 23, 2009 at 8:31:25PM | |
| $0.50 | General-Questions | 5th grade math | step by step answer
...<br> so<br> 0.45 = 45/100<br><br> ... | Apr 23, 2009 at 09:08:24PM | |
| $1.00 | Mathematics | help me solve what number is 30% of 130 | detailed solution
... so 30% =30/100<br><br> ... | Apr 22, 2009 at 9:52:37PM | |
| $2.00 | Mathematics | i dont get how to do this at all if P(a) | full work shown for conditional probability
...cause P ( A and B) = P( B and A))<br><br> ... | Apr 22, 2009 at 9:50:27PM | |
| $1.00 | Mathematics | I don't understand 4x^3 - 8x^2 = 0 | clearly explained solution( full work shown)
...*2*x*x =0<br><br>=> 4*x*x( x -2) =0 ( takin... | Apr 22, 2009 at 9:37:28PM | |
| $1.00 | Mathematics | I don't understand 4x^3 - 8x^2 = 0 | clearly explained
...=0<br> => 4*x*x*x - 4*2* x *x =0<br><br> => 4*x*x( x -2) =... | Apr 22, 2009 at 9:25:46PM | |
| $0.50 | Mathematics | find the exact value of cos120 degree | A + answer
... ( 180 - theta) =- cos (the... | Apr 22, 2009 at 9:22:25PM | |
| $1.00 | Mathematics | solve by substitution x+y=3 and 5x+2y=3 | step by step solution by substitution method
... (eqn2)<br><br>from eqn(1) , x = 3 -y<br><br> put the above valu... | Apr 22, 2009 at 8:35:39PM | |
| $1.00 | Mathematics | 14T-8=22+20T I am trying to help my gran | step by step explanation
...22 +8 (ADDING 8 BOTH SIDES)<br><br> => -6T =30<br><br> => 6... | Apr 22, 2009 at 8:18:07PM | |
| $1.00 | Mathematics | Describe the graph of 5x plus y less tha | answered with full explanation
...hrough another point ( 0.4 , 0)<br><br> if we join these two points<br><br> you will get the g... | Apr 22, 2009 at 01:18:32PM | |
| $0.75 | Mathematics | how to solve (y-3)(y-4)=6 | answered with steps
...<br><br> => y*y - 4*y -3*y +3*4 =6<br><br> => y^2 -... | Apr 22, 2009 at 01:14:04PM | |
| $2.00 | Mathematics | CONIC SECTIONS | answered with explanation
... b =4<br><br> and a< b<br><br> so if the conic section is an ellipse t... | Apr 22, 2009 at 01:10:54PM | |
| $6.00 | Mathematics | Factoring questions | all questions answered with full work and explanation
...<br><br> = x^2 -(2y)^2<br><br> =(x+2y)(x -2y)<br><br>14)81a^2 -b^2<br><br> =(9a)^2 -b^2<br><br> =(9a +b)(9a -b)<br><br>15...... | Apr 21, 2009 at 11:24:05PM | |
| $2.00 | Mathematics | Calculus 2: Euler approximation | detailed step by step solution
...<br><br> = (1.5) +(0.25)*[(0.25)+2(1.5)]<br><br> = 1.5 +(0.25)*[ 0.25 +3]<br><br> =1.5 +(0.25)*(3.25)<br> = 2.3125<br>x2 = x1 +h<br&...... | Apr 21, 2009 at 10:10:26PM | |
| $6.00 | Mathematics | Calculus 2: Solve each differential equation or inital-value problem (show work) | full work and explanation shown to all 6 questions
...solution is <br><br> ln(y) = (x/2) +ln(8)<br><br> => ln(y) - ln(8) = (x/2)<br><br> => ln(y/8) = (x/2)<br><br> => (y/8) = e^(x/2)<br>...... | Apr 21, 2009 at 9:33:34PM | |
| $1.00 | Mathematics | Quadratic | clearly explained solution
...g 2x both sides)<br><br> => 2x + 7 =-6<br><br> ... | Apr 21, 2009 at 09:36:42PM | |
| $0.50 | Mathematics | Solve by substitution: y=-3x+19 ; y=2x-1 | both the questions answered with full work
...19 = 2x -1<br><br> => -3x -2x =-1 -19<br><br> => -5x = -20<br><br> => 5x =20<br><br> => x = 20/5 =4<br><br> put the...... | Apr 21, 2009 at 04:44:52PM | |
| $1.00 | Mathematics | PLEASE HELP!!! Totally lost (Math 116) Want how you came to get the answer | detailed explanation
...<br> so the solution is uniqu... | Apr 21, 2009 at 02:06:20PM | |
| $1.00 | Mathematics | PLEASE HELP!!! Totally lost (Math 116) Want how you came to get the answer | detailed step by step solution
...6y = -14 (eqn3)<br><br>3* eqn(2) is 21x -6y =51 (eqn4)<br><br> add ing eqn(3) and ... | Apr 21, 2009 at 02:03:13PM | |
| $0.50 | Mathematics | (1/3)(3/4)+ (-2/5)^2 | full work shown
... (1*3)/(3*4) +(-1)^2 *2^2/5^2<br><br> = 1/... | Apr 21, 2009 at 01:09:49PM | |
| $0.50 | Mathematics | (1/3)(3/4)+ (-2/5)^2 | full work shown
.../5)^2<br><br> = 1/4 + (-1)*(-1) *(2*2)/(5*5)<br>... | Apr 21, 2009 at 01:05:53PM | |
| $0.25 | Mathematics | Find the median and mode | full work shown
... 35 , 36 , 44, 46 , 46 , 59<... | Apr 21, 2009 at 01:01:49PM | |
| $0.25 | Mathematics | Find the median and mode | full work shown
...5 , 36 , 44 , 46 , 46 , 59<br><br> medi... | Apr. 21, 2009 at 12:59:31AM | |
| $0.50 | Mathematics | 7/x-8/y=-11/x+3/y=25/28 | full work shown
...> 1/y = 1/4<br><br> => y =4<br><br> putting the value of y in eqn(1) we get<br><br> 7/x - 8/4 = -1<br>... | Apr 20, 2009 at 10:06:05PM | |
| $0.50 | Mathematics | 2(r - 6)=3r Twice the difference of r | full work with explanation
...> (2r -3r) -12 = 0<br><br> => -r -12 =0<br><br> ... | Apr 20, 2009 at 9:10:54PM | |
| $1.00 | Mathematics | Never got my head round geometry | step by step answer
... = 4 *pi * (5)^2<br><br> = 4* 22/7 *25<b... | Apr 20, 2009 at 07:16:39PM | |
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...the number 09 as 1<br><br> so 19.096 = 19.1<br><br> 26)726 miles per 22 gallons = 726/22 miles/ gallons<br><br> = 2*363/2*11<br&g...... | Apr 20, 2009 at 03:34:39PM | |
| $1.00 | Mathematics | find 3 consecutive even numbers so the sumof the first & third number is 22 less than 3 times the second number | full work shown
... => 2x +4 = 3x -16<br><br> => 2x -3x =-16 -4<br> => -x =-20<br><br> => x =20<br><br> so the... | Apr 20, 2009 at 03:23:14PM | |
| $1.00 | Mathematics | find 3 consecutive even numbers so the sumof the first & third number is 22 less than 3 times the second number | full work shown
...+2 and next even number will be x +4<br><br> so the even numbers are x , x +2 ... | Apr 20, 2009 at 03:19:33PM | |
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...m question base = (x +3)cm<br><br> now area of triangle = 1/2 * base * height<br><br> = ... | Apr 18, 2009 at 10:09:09PM | |
| $1.50 | Mathematics | if V(x,t)=f(x-ct)+ g(x+ct),where f and g | full work shown
...n differentiating both sides with respect to x we get<br><br> d^2V/dx^2 =f"(x-ct) *1 +g"( x+ct)*1<br><br> = f"(x-ct) +g"(x+ct)<br><br>...... | Apr 18, 2009 at 10:03:27PM | |
| $1.00 | Mathematics | verify the given identity algebraically: | full work shown
...1-cosx)]<br><br> = [1 - (cosx)^2]/[cosx( 1 -cosx)]<br><br> = [( ... | Apr 18, 2009 at 9:08:50PM | |
| $1.00 | Mathematics | HELP! usING A PATTERN STRATEGY | correct answer
...13 14 15 E 17 18 19 <br><br>F 21 22 23... | Apr 18, 2009 at 1:35:19PM | |
| $1.00 | Mathematics | Multiply (6.4)(8)(-5) | step by step answer
...)(8)(-5)<br><br> = - (6.4)(8)(5)... | Apr 18, 2009 at 1:16:57PM | |
| $1.00 | Mathematics | Multiply (6.4)(8)(-5) | detailed answer
... = -[(64*8)/(2*5)]*5<br><br> ... | Apr 18, 2009 at 1:13:59PM | |
| $1.00 | Mathematics | Find the values of increase and decrease | full work shown
...<br><br>( - infinity , -1) , ( -1 , -1/ 2 sqrt(5)) , ( -1/ 2sqrt(5) , 1/2sqrt(5) ),( 1/ 2 sqrt(5) , 1) , ( 1 ,+ infinity)<br><br>in the first interval f\'(x) is positive<br&...... | Apr 18, 2009 at 11:05:46PM | |
| $0.75 | Mathematics | Help me do this (1/tanx-secx)+(1/tanx+se | detailed answer ( full work shown)
... ( taking - common in the second term)<br><br> now we take l.c.m ( secx+tanx)(secx -tanx)<br><br>... | Apr 18, 2009 at 10:54:47PM | |
| $1.50 | Mathematics | products | detailed answer
... +i(sin pi/3 * cos pi +cos pi/3 * sin pi }]<br><br> ( since i^2 =-1)<br><br> ... | Apr. 18, 2009 at 12:51:18AM | |
| $4.00 | Mathematics | Extra credit | step by step solution to all 4 questions
...5 , y5 = 5^3 =125<br><br> x6 = 6 , y6 = 6^3 =216<br><br> x7 = 7 , y7 = 7^3 =343<br><br> x8 = 8 , y8 = 8^3 =512<br><br> x9 =9 , y9 = 9^3 =729<...... | Apr 17, 2009 at 11:35:17PM | |
| $1.00 | Mathematics | 7Lne^(x+2) use the properties of natura | detailed answer
...because ln m^n = n* ln(m) ... | Apr 17, 2009 at 10:28:43PM | |
| $1.00 | Mathematics | solve by addition | full work shown
...(2) we get<br><br> 2x =8<br><br> so x =4<br>... | Apr 17, 2009 at 9:25:43PM | |
| $0.75 | Mathematics | solve system | step by step solution for you
...ng this value of y in eqn(1) we get<br><br> 6x -3(10x -7) =3<br><br> => 6x -3ox +21 =3<br><br> => ... | Apr 17, 2009 at 9:06:06PM | |
| $0.50 | Mathematics | Solve each system by substitutionDeter | detaiiled step by step solution by substituition method
... => y = 2(-20) -1<br><br> => y =-40-1 =-41<br><br> so s... | Apr 17, 2009 at 8:50:38PM | |
| $1.00 | Mathematics | Homework help | step by step answer
...br><br> f(x) = 3x -14 (eqn2) ( straight line)<br><br> we solve eqn(1) and eqn(2) to find points of intersection of the parabola and the line<br><br> x^2 -...... | Apr 17, 2009 at 1:04:32PM | |
| $1.00 | Mathematics | Homework help | detailed step wise integration of dx/ x sqrt( x-3)
...2 + (sqrt3)^2 )]<br><br> = 2* ( 1/ sqrt(3)) * arc tan ( t/ sqrt(3)] +c<br><br> ( because ... | Apr 17, 2009 at 12:42:25PM | |
| $0.75 | Mathematics | algebra/how to use the substitute method | full work shown
...n(2)<br><br> so 3(2y +1) -y =13<br><br> so 6y +3 -y =13<br><br> so 5y... | Apr 16, 2009 at 10:44:08PM | |
| $2.00 | Mathematics | Find the intervals of increase | full work shown
...2 -1) -1( x^2 -1) =0<br><br> so ( x^2 -1) ( 20x^2 -1) =0<br><br> so ( x +1)( x-1) ( 20x^2 -1) =0<br><br> so x =1 , -1 or 20x^2 =1<br><br> so x =...... | Apr 16, 2009 at 9:52:11PM | |
| $5.00 | Mathematics | Roster form | all questions answered with detailed steps except question 4
... in A <br><br> B is a subset of A<br><br>5) A' means (U - A )<br><br> so A ' = {21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31} -{21 , 23 , 25 , 27 , 29 }&l...... | Apr 16, 2009 at 9:28:20PM | |
| $4.00 | Mathematics | quick question, dy/dx | clearly explained step by step solution
... sides with respect to x we get<br><br> dy/dx = 2* ( 1/y) * (dy/dx) +1<br><br> => dy/dx -(2/y) (dy/dx) =1<br><br> => (dy/dx)*( 1 - 2/y) =1<br><b...... | Apr 16, 2009 at 12:03:42PM | |
| $4.00 | Mathematics | derivative | detailed stepwise differentiation ( FULL WORK SHOWN)
...ln(x^2 -3x +5)] +3* d/dx[ ln( x^2 -3x +7)]<br><br> = -5* ln(2) -[(1/3)*(2x -3)/(x^2 -3x +5)]+[ 3*(2x -3)/(x^2 -3x +7)]<br><br> so y' = dy/dx = y*[ - 5 * ln(2) - {(1/...... | Apr 16, 2009 at 11:45:33PM | |
| $1.00 | Mathematics | Mean value theorem, please help | detailed answer by Lagranges mean value theorem
...<br> so Lagranges mean value theorem says<br><br> [f(b) - f(a)]/( b-a) = f'(c)... | Apr 15, 2009 at 11:24:58PM | |
| $0.50 | Mathematics | what is the answer to the following 90=1 | detailed answer shown
...<br> => 180 = x -6<br><br> => 180... | Apr 15, 2009 at 11:13:44PM | |
| $1.00 | Mathematics | please explain | perfect explanation and full work shown
...<br><br> so 22x /10 =22<br><br> so 22x = 22*... | Apr 15, 2009 at 11:10:10PM | |
| $0.50 | Mathematics | F(x) =x^4-2x^2 please help | detailed answer
...<br><br> so 4x^3 -4x =0<br><br> => 4x( x^2 -1) =... | Apr 15, 2009 at 11:02:45PM | |
| $0.50 | Mathematics | number 5 | clearly explained solution
...3)(x -15) =0<br><br> either ( x+3) =0 or ( x -15) =0<br><br>... | Apr 15, 2009 at 9:43:47PM | |
| $1.00 | Mathematics | number 7 | clearly explained solution
... sqrt( b^2 -4ac)]/2a<br><br> here a = 3 , b = 2 , c =-1<br><br> so x = [ -2 (+ or -) ... | Apr 15, 2009 at 9:39:28PM | |
| $0.50 | Mathematics | solve the equation -116=-a | simple explanation
...(-1)*a<br><br> divide bo... | Apr 15, 2009 at 9:10:24PM | |
| $1.00 | Mathematics | number 6 | full work shown
...x( x -8) -5( x-8) =0<br><br> => (x-8)( x-5... | Apr 15, 2009 at 9:07:57PM | |
| $0.50 | Mathematics | solve #2 | full work shown
...-3x -5<br><br> => -7x +7 +4 =-3x -5<br><br>=> -7x +11 =-3x... | Apr 15, 2009 at 8:24:33PM | |
| $1.00 | Mathematics | whats the sum of 2/5-5/8 | detailed answer
...r><br>= (2*8/5*8) - -(5*5)/(8*5... | Apr 15, 2009 at 8:10:58PM | |
| $1.00 | Mathematics | Solve | step by step answer
... taking (3/x) common)<br><br> => (3/x)*(-3) =... | Apr 15, 2009 at 8:07:23PM | |
| $2.00 | Mathematics | elimation method | detailed solution ( full work shown)
... (eqn1)<br><br>4x -2y =8 (eqn2)<br><br> divide eqn(2) by 2 <br><br> so eqn(2) becomes<br><br> 2x -y = 4 (eqn3)<br><br> now...... | Apr 12, 2009 at 07:31:58PM | |
| $1.00 | Mathematics | algebra question | full work shown
... => (2u+7)(2u +7) =0<br><br> => (2u +7)^... | Apr 12, 2009 at 01:58:26PM | |
| $1.00 | Mathematics | PLEASE HELP!!! Totally lost (Math 116) Want how you came to get the answer | full work shown
...qn3)<br><br> 2* eqn(2) is<br><br> 4x +6y = -460/19 (eqn4)<br><br> eqn(3) + eqn(4) is<br><br> 13x = 120 - 460/19<br><br> = (2280 -4...... | Apr 12, 2009 at 01:18:24PM | |
| $1.00 | Mathematics | PLEASE HELP!!! Totally lost (Math 116) Want how you came to get the answer | detailed steps shown
...h be x m<br><br> so twice of width = (2x) m <br><br> 4 m more than twice the width is ( 2x +4) m<br><br> according to que... | Apr 12, 2009 at 01:04:38PM | |
| $6.00 | Mathematics | set concepts | all questions answered with full work
...b , c , d , e , f , g , h , i}<br><br> so n(A) = 9<br><br> so number of subsets of B are = 2^9<br> =512<br><br>3)<br>...... | Apr. 12, 2009 at 12:56:16AM | |
| $1.00 | Mathematics | Equations | full work shown
...4) -1(x+4) =0<br><br> so (x+4)(x-1) =0<br><br> so either (... | Apr 11, 2009 at 8:37:48PM | |
| $0.50 | Mathematics | Algebra | complete stepwise answer
... (3d)/3 = (27/3)<br><br> =... | Apr 11, 2009 at 11:28:47PM | |
| $0.25 | Mathematics | How do I simplify 4(3x + 5)? | detailed stepwise answer
... 4(3x +5) = 4... | Apr 10, 2009 at 11:34:38PM | |
| $1.50 | Mathematics | Please help xtra credit | detailed stepwise integration
...tion<br><br> put x = 3 sect => sect = x/3 => tant = sqrt[ (sect)^2 -1]<br><br> = sqrt(x^2/9 -1}<br><br> ...... | Apr 10, 2009 at 1:22:15PM | |
| $1.00 | Mathematics | Please help not sure of right answer | detailed stepwise integration
...] = (lnx)^2* (int. of dx)- int. of[(int. of dx)* derivative of (lnx)^2]<br><br> = (lnx)^2* x - int. of [ x * 2*(ln x)*(1/x) dx]<br><br> = x * (... | Apr 10, 2009 at 12:56:59PM | |
| $1.00 | Mathematics | The Calculus | full work shown
...[d/dt(sint)* (cost) + (sint)* d/dt(cost)]<br><br> (using product rule)<br><br> = -sin... | Apr 10, 2009 at 06:16:35PM | |
| $1.00 | Mathematics | PLEASE HELP!!! Totally lost (Math 116) Want how you came to get the answer | complete step by step answer
...y -y1 = m( x-x1)<br><br> here x1 = 9<br><br> y1 = 8<br><br> slo... | Apr 10, 2009 at 02:50:50PM | |
| $0.50 | Mathematics | if x=4 and y=-2 the value of 1/2xy2 is | detailed solution
...xy^2)<br>so 1/(2xy^2) <br><br> = 1/ 2*x*y*y<br><br> =... | Apr 09, 2009 at 8:35:00PM | |
| $0.25 | Mathematics | (2q+1)(q+1)=2(1-q)+6 | detailed stepwise answer
...o q( 2q +7) -1( 2q +7) =0<br><br> so (2q +7)(q -1) =0<br><br> so either (2q +7) =0 or... | Apr 09, 2009 at 12:57:57PM | |
| $0.75 | Mathematics | x+2y=13x+4y=-3solving systemes of | clearly explained solution
...-2y +3 =-3<br><br> so -2y = -3-3<br><br> so -2y =-6<br><br> so 2y =6<br><br> so y = 6... | Apr 09, 2009 at 09:20:58PM | |
| $1.00 | Mathematics | PLEASE HELP!!! Totally lost (Math 116) Want how you came to get the answer | clearly explained solution
...w we take eqn(2) and eqn(5)<br><br> eqn(5) + eqn(2) is<br><br> 18r -s =-39 -19<br><br> so 18r -s =-58 (eqn7)<br><br> now we add eqn(6) and eqn(7)...... | Apr 09, 2009 at 04:38:48PM | |
| $1.00 | Mathematics | PLEASE HELP!!! Totally lost (Math 116) Want how you came to get the answer | clearly explained solution
... 78<br><br> so 39x =-78<br><br> so x =-(78/39)<br><br> =-2<br><br> now we put the value of x =-2 in eqn(2)... | Apr 09, 2009 at 04:23:45PM | |
| $3.00 | Mathematics | Using separation of variables technique, | detailed step by step solution by variable separable method( FULL WORK SHOWN)
...= int. of [x/(x^2+1)] dx<br><br>=> ln(y+5) = int. of [x/(x^2+1)]dx<br> <br> put x^2+1 =t<br><br> so 2x dx = dt&...... | Apr 08, 2009 at 9:26:08PM | |
| $1.00 | Mathematics | how do i express the following binary nu | expression of binary number to decimal number
...1 + 1x 2^0<br><br> = 1 x 2 + 1 x 1<br>... | Apr 07, 2009 at 07:26:50PM | |
| $1.00 | Mathematics | How do I determine if the given ordered | clearly explained
... =4 , y=1 , z =2<br><br> we put these values in the three equations<br><br>x -2y =2<br><br> ... | Apr 07, 2009 at 01:04:53PM | |
| $0.50 | Mathematics | I don't understand how to factor this pr | step by step factorisation
... from the first two terms take x common<br>... | Apr. 07, 2009 at 12:51:16AM | |
| $1.00 | Mathematics | PLEASE HELP!!! Totally lost (Math 116) Want how you came to get the answer | detailed answer shown
...1x +9y = 49 (eqn6)<br><br> eqn(5) - eqn(3) ( to cancell 3z) is <br><br> x +11y = 35 (eqn7)<br><br>11 * eqn(7) is <br><br> 11x +121y =...... | Apr. 07, 2009 at 12:20:27AM | |
| $1.00 | Mathematics | PLEASE HELP!!! Totally lost (Math 116) Want how you came to get the answer | full work shown
...x common)<br><br> so x[ 2/2*2 -1/4] =1<br><br> so x[ 2/4 -1/4] = 1<br><br> so (1/4) x =1<br><br>so x/4 =1<br><br> so x =4 <br&...... | Apr. 07, 2009 at 12:04:45AM | |
| $1.00 | Mathematics | If lines ab coordinates are 4,4 and 8,-2 | detailed answer of the equation of straight line through two points
... x1 ,y1) = ( 4 ,4)<br><br> ( x2 , y2) = ( 8 ,-2)<br><br> so required equat... | Apr 06, 2009 at 11:53:24PM | |
| $0.50 | Mathematics | A table and chair cost $168 together.The | clearly explained answer
...n cost of table = $(x +110)<br><br> total cost = x + ( x+110)<br><br> ... | Apr 06, 2009 at 10:08:08PM | |
| $0.25 | Mathematics | Translate this sentence into an equation. | detailed answer
...tor's saving = h + 23... | Apr 06, 2009 at 9:56:50PM | |
| $0.25 | Mathematics | Solve Q 12 | all steps shown
...dding (1) and(2) we get<br><br> 3y = 3<br><br> so y =1<br><br> ... | Apr 06, 2009 at 9:53:46PM | |
| $0.25 | Mathematics | polynomials | steps shown
...3*y* z^6* z)/( -2* x^2*y *z... | Apr 06, 2009 at 9:35:44PM | |
| $1.00 | Mathematics | Inverse of a Function | correct answer with full work
... = ( 1/4y) +5<br><br> ( 1/4y) = x -5<br><br>... | Apr 06, 2009 at 11:42:59PM | |
| $0.50 | Mathematics | Logarithms | detailed answer with full work
...= 5* log2 ( base2) ( because... | Apr 06, 2009 at 11:07:47PM | |
| $1.00 | Mathematics | need help with math problem Simplify: x+ | step by step simplification ( full work shown)
...^2 +6x +2x +12-2x +2 -14)/(x-1)( x+6)<br><br> = (x^2+6x)/( x-1)( x... | Apr 06, 2009 at 11:00:22PM | |
| $0.50 | Mathematics | Geometry | correct answer with explanation
...0) meter.<br><br> ... | Apr 06, 2009 at 10:49:46PM | |
| $1.00 | Mathematics | Homework help | step by step integration
...the integral becomes<br><br> first function * int. of ( second function)<br><br> - int. of[ (int.... | Apr 06, 2009 at 10:45:48PM | |
| $1.50 | Mathematics | Homework | step by step integration
...nt. [ (lnx)*(1/x)*(1/x) ] dx<br> = int. [ (lnx) *(1/x)] (1/x) dx<br><br> we do this by substituition method<br><br> put ln x = t => x = e^t<br><...... | Apr 06, 2009 at 10:32:15PM | |
| $10.00 | Mathematics | Exponents and Complex Numbers | question no 9 to question no 24 answered with full work
...2*y^2 -1)^2/y^4]* [ 1/{(xy -1)/y}^2]<br><br> = [(x^2*y^2 -1)^2 /y^4] * [ y^2/(xy -1)^2]<br><br> = [ {(xy)^2 -1)}^2/y^4]*[y^2/(xy -1)^2]<br><br> = [{ (xy +1)(x...... | Apr 06, 2009 at 10:15:04PM | |
| $0.75 | Mathematics | Solve Q36 | clearly explained solution
...f x =4,<br><br> y =2x -1<br><br> => y = 2*4 -1<br><br> = 8-1<br><br> =7<br><br> ... | Apr 06, 2009 at 05:06:33PM | |
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... again<br><br> x =-2x -1<br><br>simplifying we get<br><br> x + 2x = -1<br><br> ... | Apr 06, 2009 at 05:01:57PM | |
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...6)=24<br><br> so -2a +48 = 24<br><br> so -2a = 24 -48<br><br> so -2a = -24<br><br> so a = 12<br>... | Apr 06, 2009 at 04:28:06PM | |
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... ( -7 ,-3)<br><br> now how to graph these lines?<br><br> x + y =-10<br><br> if x =0 , y =-10<br><br> if y =0 ,x = -10<br>if x =-7 , -7 +y = -10&l...... | Apr 05, 2009 at 05:09:20PM | |
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... (eqn3)<br><br> adding eqn(1) and eqn(3) we get<br><br> 212 x = 159<br><br> so x = 159/212<br><br>20x -3y =13<br><br> so 20( 159/212) -...... | Apr. 05, 2009 at 12:02:26AM | |
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... 6<br><br> 2 1 -1 4]<br><br>Gauss Jordan method says<br><br> make all elements of the augmented matrix to 0 except the main diagonal.<br><br> ...... | Apr. 04, 2009 at 12:55:59AM | |
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...ultiplying)<br><br> so 6y -6 = 5x -20<br><br> so 5x -20 = 6y -6<br><br> so 5x -6y = 20-6<br><br> so 5x -6y = 14<br><br>3) y +4 = -(1...... | Apr 02, 2009 at 9:34:49PM | |
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... 9( e^2 -1)<br><br> so e^2 -1 = 49/9<br><br> so e^2 = 49/9 +1<br><br> = 58/9<br><br> so e = sq... | Apr 02, 2009 at 9:10:40PM | |
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... 1 +4*W*W*W*W) ( taking 9*w*w*w common)<br><br> = 9w^3( 1 + 4w^4... | Apr 02, 2009 at 06:35:05PM | |
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...f( x+h) - f(x) = x^2 +2xh +h^2 -2x -2h +1 -x^2+2x -1<br><br> = 2xh+h^2-2h<br><br> = h( 2x + h -2)<br><br> ... | Apr 02, 2009 at 02:48:16PM | |
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...(2)<br><br> A( 1+1)+1( B+ C) =2<br><br> so 2A +B +C =2<br><br> so 2*2 +B +C =2<br><br> SO B +C = -2 (eqn3)<br><br> put x =-1 in eqn(2...... | Mar 30, 2009 at 11:31:13PM | |
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... the form y = mx +c, where m is the slope of the... | Mar. 30, 2009 at 12:38:18AM | |
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... that is <br><br> lim( x-> a-) f(x) = lim( x-> a+) f(x) = f(a)<br><br> so lim( x-> -1 -)( 3x +x^2)^3<br><br> = [3*(-1) +(-1)... | Mar 28, 2009 at 9:34:40PM | |
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...6-1<br><br> so -5x =5<br><br> so x =-1<br><br> now we put the value of x in equation(3)... | Mar 28, 2009 at 1:18:55PM | |
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... ( derivative of c is 0)<br><br><br> so 3x^2 -5[ 1*y + x*dy/dx] -4y dy/dx =0<br><br> so 3x^2 -5y... | Mar 28, 2009 at 1:11:55PM | |
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...(x-1)]/(x-1)^2<br><br> = [(x-1) *(1+0) -(x+2)*(1-0)]/(x-1)^2<br><br> = (x-1 -x-2)/(x-1)^2<br><br> = -3/(x-1)^2<br><br...... | Mar 28, 2009 at 1:04:04PM | |
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... (5 +x)(2x +10)<br><br> = (5 +x) *2 (x +5) ... | Mar 28, 2009 at 03:40:42PM | |
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...3b)^2] (using (a+b)^2 =a^2 +2ab +b^2)<br><br><br> = 3*[(2a)*(2a) +2*2... | Mar 28, 2009 at 03:36:52PM | |
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...(2x) + 9*5<br><br> = 3*2*x*x +3*5*x +9*2... | Mar 28, 2009 at 03:28:39PM | |
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...d/dx(x)<br><br> = 62*1 =62 (answer)<br><br>3) y = e^(x) +e^(-x)<br><br> so dy/dx = d/dx( e^(x)) +d/dx(e^(-x))<br><br> = e^x...... | Mar 27, 2009 at 8:51:01PM | |
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...ominator are equal.<br><br> so first we divide]<br><br> = 1 - [(3x^2 +3x+1)/(x^3 +3x^2 +3x+1)]<br><br> = 1 - [(3x^2 +3x +1)/(x+1)^3]<br><br> so...... | Mar 23, 2009 at 10:46:56PM | |
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...<br> = 2(x+1)^2 -5<br><br> so (y+5) = 2(x+1)^2<br><br> so (x+1)^2= (1/2)(y+5)<br>here h =-1 , k =-5 , 4a =1/2, so a =1/8<br> vertex is (-1 ,-5)&l...... | Mar 18, 2009 at 10:28:14PM | |
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...y^2 *dy/dx -( x*2y*dy/dx + y^2) =0<br><br> so dy/dx ( 3y^2 -2xy) -y^2 =0<br><br> so dy/dx( 3y^2 -2xy) =y^2<br><br> so dy/dx = y^2/(3y^2 -2xy)<br><br>...... | Mar 11, 2009 at 12:39:35PM | |
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...x)^3* d/dx(2-x) } +(2-x)^4 *3x^2]<br><br> = 5*[ x^3*4*(2-x)^3* {(d/dx(2) -d/dx(x)} +(2-x)^4*3x... | Mar 10, 2009 at 10:51:56PM | |
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...x-1)/(5x-1)<br><br> so g'(x) = [(5x-1)*d/dx[ sqrt(10x^2 +3x-1)] - sqrt(10x^2 +3x-1) *d/dx(5x-1)]/(5x-1)^2 (using quotient rule)<br><br><br> so g'(x) =[ {(5x-1)*{1...... | Mar 09, 2009 at 11:26:50PM | |
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...21<br><br>5) 3*sqrt(x-1) =(x-1)<br><br> squaring both sides<br><br> 9(x-1) = (x-1)^2<br><br> so (x-1)^2 -9(x-1) =0<br><br> so (x-1)(x-1...... | Mar 06, 2009 at 01:21:46PM | |
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...0)^(5/4)]<br><br> = (10)^(1+5/4)<br><br> = 10^(9/4)<br><br><br>8) sqrt(3y +7) = 7<br><br> squaring both sides<br><br> (3y+7)...... | Mar 04, 2009 at 9:24:48PM | |
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...<br> similarly<br><br> if cost c is 135.20<br><br> 135.20 = 0.25(t-600) -70.95<br><br> so 135.20 +70.95 = 0.25t - (0.25)*600<br>... | Mar 02, 2009 at 01:25:16PM | |
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... so 6*x -6*8 =2x +12<br><br> so 6x -48 =2x +12<br><br> so 6x -48 +48 = 2... | Mar. 02, 2009 at 12:07:53AM | |
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... line is <br><br> y - y1 = m(x-x1)<br><br> here (x1,y1) = (5,-1)<br><br> and m = -2/3<br><br> so eqn is <br><br> y + 1 = -2/3 ( x-5...... | Mar 01, 2009 at 8:55:16PM | |
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... tangent line at x =5 is <br><br> y = 5 + 7(x-5) (eqn1)<br><br> = 7x -30<br><br> so slope of the tangent li... | Feb 24, 2009 at 01:29:08PM | |
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