Tutorials Posted by alephzero314
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| Bounty | Category | Question | Tutorial | Date Posted | |
|---|---|---|---|---|---|
| $8.75 | Mathematics | Glossary definition paper | The vast majority of the definitions you asked for
...st of the definitions you asked for. I skipped a few of them because some... | Apr. 10, 2009 at 04:26:39AM | |
| $44.00 | Mathematics | for alephzero314 only | Full Paper on Dual Spaces, includes Definitions, Theorems, Proofs, and Examples
...about 4.5 pages, and this final product is a little more than 9 pages... | Apr 07, 2009 at 5:23:44PM | |
| $3.00 | Mathematics | can'figure out! | Complete Solution, Every Step Shown
...ttache... | Mar 28, 2009 at 7:02:21PM | |
| $5.00 | Mathematics | logistic | Complete Solution with Work Shown
...ed is a pdf... | Mar 28, 2009 at 6:26:07PM | |
| $1.00 | Mathematics | cosX+sinxtanx=secx prove the identity | Complete proof with every step
...<br>= cos(x) + 1/cos(x) - cos^2(x)/cos(x... | Mar 26, 2009 at 9:30:43PM | |
| $2.00 | Mathematics | Mth 156 | Problem 32: Parts e through h
...e attac... | Mar 26, 2009 at 3:14:38PM | |
| $3.00 | Mathematics | Find the number c | Complete solution, every step included
...omplete sol... | Mar 26, 2009 at 09:16:46PM | |
| $15.00 | Mathematics | Mth 156 | Complete typeset solutions for each problem
...e soluti... | Mar 26, 2009 at 02:15:12PM | |
| $3.00 | Mathematics | circle terminology | Answers
... a circle in two point? secant line<br><br>arc measuring less than 180? minor arc<br><br>A semicircle is ______ of a... | Mar. 26, 2009 at 12:30:17AM | |
| $40.00 | Mathematics | linear algebra 2ndproofs | All proofs from pages 1 through 6
...f with the proofs... | Mar. 24, 2009 at 08:41:04AM | |
| $5.00 | Mathematics | linear algebra | Full solution with every single step included
...mn 3, let v3=t.<br>Then v1 = 3t/4, and v2 = -7t/4<br>So v=(v1,v2,v3) =(3t/4,-7t/4,t)<br>=t(3/4,-7/4,1)<br>So the eigenvectors associated to x=0 are:<br>span(3/4,-7/4,1)&l...... | Mar 19, 2009 at 7:09:04PM | |
| $1.00 | Mathematics | Algebra 2 | Complete solution with an explanation for each step
...attained by the parabola.[Since the number multiplying l^2 is negative, it opens downwards, so it attains some particular maximum height].<br><br>You can find the parabola's maximum...... | Mar 11, 2009 at 08:16:54PM | |
| $1.00 | Mathematics | Help with Functions/Linear Equations????? | Full Solution with Explanation
... a function.<br><br>For example:<br><br>a) {(5,3), (2,8), (-5, -1), (4,7), (2,1)}<br>Let's look at just the first numbers. <br>5,2,-5,4,2<br>Since the number...... | Mar 09, 2009 at 6:11:36PM | |
| $1.00 | Mathematics | how do i go about solving this problem? | Full Solution
...t laws:<br>9^(4x - 14) = 9^(3x-1)<br>Take log_... | Mar 06, 2009 at 8:21:07PM | |
| $1.00 | Mathematics | how to solve solution by elimnation by u | Full Solution with each step included
...ations: <br><br>5x - 2y = 19<br>3x + 4y = 1<br><br>Multiply the 1st equation by 2:<br><br>10... | Mar 06, 2009 at 6:22:37PM | |
| $1.00 | Mathematics | You are driving a car from point A. to point B. | Full Solution
...For the first half-mile:<br>Distance = Speed * Time<br>1/2 = 30 * Time<br>Time = (1/60) hours<br><br>Average speed = Total ... | Mar 06, 2009 at 6:17:59PM | |
| $10.00 | Mathematics | homework today | Problem 3
...one of the othe... | Mar 05, 2009 at 5:24:48PM | |
| $1.00 | Mathematics | need solutions to questions | Full solutions with every step included plus graph
...<br>2x = -10<br>Divide both sides by 2:<br>x = -5<br><br>Answer: x=-5<br><br>4)<br>-4-5y = 20<br>Add 4 to both sides:<br>-5y = 24<br>D...... | Mar 05, 2009 at 04:19:04PM | |
| $12.50 | Mathematics | Math Help | Full solutions
...Soluti... | Mar 04, 2009 at 9:41:51PM | |
| $8.00 | Mathematics | Laplace equation | Complete solution with steps
...= F''(e^t) e^(2t) + G'(t) e^(t) e^(-t)<br> = F''(e^t) e^(2t) + G'(t) <br>Thus:<br>F''(e^t) = (G''(t) - G'(t))/(e^(2t))<br><br>Let's sub that in:<br><br>e^(2t)...... | Mar 04, 2009 at 8:55:13PM | |
| $20.00 | Mathematics | calculus (tsu) | Every proof step by step in typeset pdf format
...cluded in... | Mar 04, 2009 at 8:08:22PM | |
| $2.00 | Mathematics | urgent help needed | Full Solution with picture of S
...n. It moves a point horizontally 1 unit to the right and 2 units down.<br><br>g is a clockwise rotation by 90 degrees. (Try inputting some points to see this).<br><br>b)<br&...... | Mar 03, 2009 at 8:10:45PM | |
| $2.00 | Mathematics | Trig - Help | Full solution with steps
...Pi (approximately)<br>Since we expect 0.1309H to be between 0 and Pi, it suffices to use arccos to get rid of the cosine, since it gives the unique solution of a cos equation that's between 0...... | Mar 02, 2009 at 6:21:43PM | |
| $1.51 | Mathematics | help me solve this 5x-2y=4 x+2y=8 | Full solution with every step included
... get:<br>x = 8- 2y<br><br>Subsitute "8-2y" for "x" in the first equ... | Mar 02, 2009 at 5:55:32PM | |
| $0.50 | Mathematics | If tan(0)>0 then in which Quadrants can | How to solve these types of questions
...If tan(x) = 0, then in which quadrant does the second ray of the angle x lie? (The first ray will always be the positive part of the x-axis.)<br><br><br>Here's a mnemonic that...... | Mar 02, 2009 at 3:43:57PM | |
| $1.00 | Mathematics | the sum of the ages of mike and dan is 2 | Full solution
...es to:<br>x + y = 20<br><br>Now, let's translate "in 4 years, dan's age will be three fourths of mike's age."<br>Dan's age in four years is y + 4.<br>Mike's...... | Mar 02, 2009 at 3:39:16PM | |
| $0.50 | Mathematics | If tan(0)>0 then in which Quadrants can | How to solve these types of questions
...s:<br><br>http://www.physics.uoguelph.ca/tutorials/trig/panel32b.gif<br><br>In the quadrant with a C that means Cosine is positive, but sine is negative, and tangent is...... | Mar 02, 2009 at 3:31:54PM | |
| $1.00 | Mathematics | math word problem | Full Solution
...2*3,3*5,2*3*5,2*5*5, etc]<br><br>Let's check the perimeter that each one results in:<br>1 150, perimeter = 2*1 + 2*150 = 302 m<br>2 75, perimeter = 2*2 + 2*75 = 154 m<br>...... | Mar 02, 2009 at 02:00:23PM | |
| $2.00 | Physics | gravitational acceleration problem | Full and complete solution with explanations of each step
...t where the astronaut reaches his maximum height).<br><br>The formula relating acceleration and speed is:<br>a = (vf - vi)/t<br>where<br>vf is the final speed<br>vi...... | Mar 02, 2009 at 01:46:34PM | |
| $4.00 | Mathematics | Need help on 2 questions | Full Solution with all steps included
...formula:<br>113.20 = 0.25(t-600) - 70.95<br>184.15 = 0.25(t-600)<br>736.6 = t - 600<br>t = 1336.6<br>So when the cost is 113.20, the time is 1336.6 minutes.<br>... | Mar 02, 2009 at 01:19:42PM | |
| $1.00 | Mathematics | The managers of a lake resort decide to | Full Solution
...he pond<br>= 2730<br><br>After 2 months, <br>3000*0.91*0.91<br><br>After 3 months,<br>3000*0.91*0.91*0.91... | Mar 02, 2009 at 01:09:32PM | |
| $7.00 | Mathematics | calculus | List of Answers
...= 81Pi/2<br><br>6)<br>a=-5/2<br>b=5/2<br>side = 25-4x^2<br>A(x) ... | Mar 02, 2009 at 01:02:53PM | |
| $0.25 | Mathematics | Math word problem | Full Solution
... larger than -n. So the exponent is -n + 8. <br><br>Method 2:<br>---------<br>Another way to get this is to see that the exponent goes up linearly, since an increase in 1...... | Mar 01, 2009 at 11:24:17PM | |
| $1.00 | Mathematics | Find the slope of the curve x^3+xy-y^2=5 | Full Solution
...') -2yy' = 0<br>3x^2 + y + xy' - 2yy' = 0<br>3x^2 + y + y'(x-2y) = 0<br>y' = (-... | Mar 01, 2009 at 11:11:20PM | |
| $0.25 | Mathematics | Math patterns | All answers
... Cut the number in half to get the next one.<br><br>c) 7,8,15,23,38,61,99,160... | Mar 01, 2009 at 11:02:06PM | |
| $0.50 | Mathematics | Calculus | Complete Solution, Every Step Included
...following way:<br>u(t) = w(y(t))<br><br>The chain rule says that:<br>u'(t) = w'(y(... | Feb 24, 2009 at 06:53:47PM | |
| $0.50 | Mathematics | Calculus | Full Solution, Every Step Explained
...f(1))*f'(1)<br><br>Let's compute the quantities involved.<br>g'(x) = d/dx(x^(1/2)) = 1/2 x^(-1/2)<br><br>Since the tangent line to f(x) at x=1 [y=4 + 4(x-1)] inte... | Feb 24, 2009 at 06:46:48PM | |
| $1.00 | Mathematics | SEVENTY PEOPLE ATTENDED A CONCERT. A GEN | Full Solution with every step included
...ickets is 4.75x.<br><br>The cost of a student ticket is $3.25. So the total money received from general tickets is 3.25y.<br><br>Thus, the total money received is 4.75x + 3.25... | Feb 22, 2009 at 2:56:26PM | |
| $1.00 | Mathematics | June ran the first mile at the rate of 1 | Full Solution with all steps
...ph<br>= (1/10) hours<br><br>Second mile time:<br>Time = Distance / Speed<br>= 1 mile /... | Feb 22, 2009 at 2:24:18PM | |
| $3.00 | Engineering | for alephzero314 | Solutions to the first set of problems
...ched ... | Feb 22, 2009 at 2:03:55PM | |
| $1.00 | Physics | you do 600 J of work hoisting a 20 kg ba | Full solution
...)h<br>h = 3.06 m<br><br>You l... | Feb 21, 2009 at 3:31:52PM | |
| $30.00 | Mathematics | I need help with this Algebra II assignment, Quadratic equations and graphing. | Full Solutions with steps and Graphs
...nus 29)/2<br>= -15 or 14<br>Since page -15 is absurd, the first page is numbered 14. Thus, the second one is numbered 15.<br><br>5)<br>x^2 + 3x - 7 = 0<br>By the...... | Feb 21, 2009 at 3:20:46PM | |
| $1.00 | Mathematics | how do i solve for x 25% of x is 50 | Full Solution
...% as a number is 0.25.<br>So the sentence<br>"25% of x is 50"<br>t... | Feb 20, 2009 at 09:30:48PM | |
| $14.00 | Mathematics | Algebra | Full solutions with every step included and explained, histogram included
...ou make out of 6 objects total to choose from, where order matters?"<br>Since order matters, we use permutations (as opposed to combinations)<br>So the solution is:<br>P(6,6) =...... | Feb 20, 2009 at 08:20:51PM | |
| $1.00 | Mathematics | find two consecutive integers whose prod | Full Solution with steps
...uct is x(x+1).<br>The sum is x + x + 1, which is 2x +1.<br>If the product is 11 more than t... | Feb 20, 2009 at 07:30:46PM | |
| $0.50 | Mathematics | Calculus | Solution with steps
...- (d/dt)(9t) - (d/dt)(3)<br>= 2... | Feb 20, 2009 at 07:25:39PM | |
| $10.00 | Mathematics | Please help with these equations | Solution with detailed explanation
...<br><br>a.<br>So we have two equations.<br>2000x + 10000y = 340000<br>8000x + 6000y = 340000<br><br>b.<br>To make it easier to solve, let's divide each...... | Feb 19, 2009 at 08:46:34PM | |
| $30.00 | Mathematics | algebra | Full Proof
... A^(-1)B]<br>[C D] [C I][0 D-CA^(-1)B]<br>Take the determinant of both sides and then use (1) to get the result.<br><br>Now, onto your problem:<br>Let Im be the mxm...... | Feb 17, 2009 at 5:59:38PM | |
| $10.00 | Mathematics | Algebra | Full Solutions
...<br>= 52!/ (2!50!)<br>= 52*51/2<br>= 1326<br><br>13) There are 5 identical events in a row. Each letter has a probability of 1/26 of being selected. Thus, the probability...... | Feb 16, 2009 at 7:05:25PM | |
| $20.00 | Mathematics | American style questions on linear Algebra... | Answers with proofs
...ep.<br>There is a nonzero linear combination of v1..vn that gives the 0 vector.<br>a1v1+a2v2+....+anvn = 0<br>Applying T, we get:<br>a1T(v1) + a2T(v2) + .... anT(vn) = 0<br&...... | Feb 15, 2009 at 7:56:50PM | |
| $0.25 | Mathematics | what is the volume of a sphere with a ra | Solution
...ume is:<br>V = 4/3 * Pi * 14^3<br>= 10976Pi/3 f... | Feb 15, 2009 at 4:39:39PM | |
| $5.00 | Mathematics | Algebra | Solutions with explanations
...example, problem 2 is (8 choose 3).<br><br>By definition,<br>(n choose k) = n! / (k!(n-k)!)<br>Let's use that definition to solve the problems.<br><br>2)<br>(...... | Feb 14, 2009 at 5:55:46PM | |
| $1.00 | Mathematics | Please help with graph | Solution
...lowermost graph. This is because<br>(4,1) is on the graph, since log_4(4) = 1<br><br>The rest of the graphs are attached.<br>Here'... | Feb 14, 2009 at 4:52:58PM | |
| $3.00 | Mathematics | help please | Full Solutions with graph.
...1.<br><br>x-intercepts are where y (or f(x)) = 0.<br>0 = x^2 - 4x + 13<br>Look at the discriminant b^2 - 4ac<br>= 16 - 4*1*13 =... | Feb 14, 2009 at 4:46:25PM | |
| $6.00 | Mathematics | Week 9 MAT 115 final Need someone to check for accuracy. | Entire Test Checked
... Don't Round.<br><br>30a) Either answer will do.<br><br><br>34a)<br>The percent increase should be<br>R/100 = 889000000/229000000<br>R/100 = 3.235<br...... | Feb 12, 2009 at 7:24:01PM | |
| $1.00 | Mathematics | 7. a. write the first six terms of the g | Solution
...pt. For example x_2 has 2 as a subscript.<br><br>7a... | Feb 12, 2009 at 6:57:36PM | |
| $1.00 | Mathematics | algebra | Solution
...----<br> -5x^2 + x<br> -5x^2 - 5x<br> --------... | Feb 12, 2009 at 6:53:56PM | |
| $1.00 | Mathematics | algebra | Solution
...ply by 3:<br>6 = x - 3y<br><br>The ... | Feb 12, 2009 at 6:31:46PM | |
| $9.00 | Mathematics | math 115 ch1 - 9 | All the answers
... 72/9 = 1/9<br>e)4/7<br><br>2a) 402 remainder 37<br>2b) |17-18| + |7| - |-8|<br> = 1 + 7 - 8<br>= 0<br><br>2c) 13/12<br>2d) 5lb 8 oz - 2lb 11oz&l...... | Feb 12, 2009 at 6:25:35PM | |
| $0.50 | Mathematics | Calculus | Solution
...ange from t=5 to t=10<br>... | Feb 11, 2009 at 2:07:47PM | |
| $0.50 | Physics | 1. A road sign tells you that you are 60 | Solution
...m / 8 hours<br>= 75 km/h<br><br>Theref... | Feb 11, 2009 at 1:56:02PM | |
| $10.00 | Mathematics | euler cycle and euler path | Solutions with Pictures
...>d-->a-->b-->d-->e--->b<br><br>2) See attached picture for Q#2<br>Every vertex has even degree so there is an Euler cycle.<br>Take d --> a ---> d -->...... | Feb 11, 2009 at 1:52:51PM | |
| $0.50 | Mathematics | HELP PLEASE with my sons math problem | Solution
.../10.<br><br>There are 2 fractions left. We know that the Lions won fewer games than the Bears. The two fractions left... | Feb 10, 2009 at 6:30:33PM | |
| $3.00 | Mathematics | solve the following quadratic and linear equations | Full Solutions
...e need 2 numbers which add to -4 and multiply to 3.<br>These numbers are -1 and -3.<br>So it factors to<br>0 = (x - 1)(x - 3)<br>Thus, x=1 or x=3.<br><br>c.completi...... | Feb 10, 2009 at 6:21:40PM | |
| $0.75 | Mathematics | basic calculus question | Solution
... be the horizontal position of the lower end at time t. (t in seconds)<br>Let y(t) be the height of the upper end at time t.<br><br>Since the ladder is 29 feet long, by t... | Feb 10, 2009 at 6:13:02PM | |
| $1.00 | Mathematics | algebra story problem | Full Solution
...ours to burn.<br>The shorter candle takes 5.5 hours. (5pm to 10:30pm)<br>Let x be the original length of the longer candle.<br>Let y be the original length of the shorter candle.<...... | Feb. 10, 2009 at 12:13:08AM | |
| $3.00 | Mathematics | homework help | Full Solutions with Graphs
... lowermost graph. This is because<br>(4,1) is on the graph, since log_4(4) = 1... | Feb 09, 2009 at 11:19:00PM | |
| $5.00 | Mathematics | 1. A rectangular garden has dimensions o | Full Solution with all Steps Included
...eginning: 8000<br>After one year: 8000(1+r/100) + 2500<br>After second year: (8000(1+r/100) + 2500)(1+r/100) = 11445<br>So<br>(8000 + 8000r/100 + 2500)(1 + r/100) = 11445<br...... | Feb 09, 2009 at 10:16:12PM | |
| $1.00 | Mathematics | John jogs for 25 miles and then walks an | Full Solution
...5w - 62.5 = 0<br>Get rid of decimals by multiplying by 2:<br>30w^2 - 25w - 125=0<br>Divide by 5.<br>6w^2 - 5w - 25 = 0<br>Use quadratic equation:<br>w = ( 5...... | Feb 09, 2009 at 9:42:36PM | |
| $0.25 | Physics | physics | Full Solution
...ency * wavelength<br><br>3*1... | Feb 09, 2009 at 9:24:01PM | |
| $16.00 | Mathematics | Assistance with Math 117 | Solutions to your problems
...)<br>Look at where the graph hits the x-axis.<br>x=3,-5<br><br>11)(3m^9)^2<br>= 3^2 (m^9)^2<br><br>= 9m^18<br><br>12)<br>If a=5,<br>14...... | Feb 09, 2009 at 9:19:48PM | |
| $1.00 | Mathematics | Help me understand this word problem. | Solution
...t. That means if you go back in time 1 day, it's si... | Feb 09, 2009 at 8:33:28PM | |
| $1.00 | Physics | bird eyes | Solution
...peed is 200mph. First convert 200 mph to meters per second<br><br>200 miles = 321868.8 meters<br>1 hour = 3600 seconds<br>So the speed in metric is 321868.8/3600=89.408 m... | Feb 09, 2009 at 8:31:14PM | |
| $5.00 | Mathematics | Multiple Choice Algebra | All the answers
...missing from your document. Send them... | Feb 09, 2009 at 7:10:09PM | |
| $3.00 | Mathematics | Stewart Line Integral | Complete Solution with all Steps Shown
...z^2).<br>By Stokes theorem,<br>Integral_C F.dr = Integral_D Curl(F).dA<br>We'll compute the right hand side.<br><br>Let's compute Curl(F).<br>Curl(F) = Del x F<b...... | Feb 09, 2009 at 5:57:30PM | |
| $1.00 | Mathematics | substitution method | Full Solution
...in the first equation.<br><br>15x - (12+40x) = -7<br>15x - 12 -... | Feb 09, 2009 at 09:58:34PM | |
| $1.00 | Mathematics | algebra inequality write solution set in interval notation | Here's your answer
...l is not displaying properly it's (-infinity, -9).<br><br>The graph shown on page 2... | Feb 09, 2009 at 06:47:55PM | |
| $1.00 | Mathematics | Help with Particular Integrals | Here's a particular solution
...2Ae^(2x) + 4Be^(4x) + (-4C)e^(-4x)) +4(Ae^(2x) + Be^(4x) + Ce^(-4x))<br>= 12Ae^(2x) + 4Be^(4x) + 36Ce^(-4x)<br><br>So we want <br>12Ae^(2x) +... | Feb 09, 2009 at 06:39:55PM | |
| $8.00 | Mathematics | f'(x) proofs | Complete Proofs to all Problems
...rentiable at 0. By the above, f is differentiable everywhere.<br>We had:<br>f'(x) = f(x) f'(0)<br>f'(x) = f(x) f'(p)/f(p)<br>f'(x) = f'(p) f(x-p)<br>[Last step is...... | Feb 09, 2009 at 06:18:16PM | |
| $1.00 | Mathematics | algebra word problem | Full Solution
... the following information about the blended coffee. It should be 6 dollars a pound. So:<br>Total Price of blend / Total Pounds of blend= $6<br><br>Total... | Feb 09, 2009 at 04:35:59PM | |
| $0.75 | Mathematics | Mike's cake | Full Solution
...ea is<br>20.25Pi*8<br>= 162Pi square inches<br><br>Substituting 3.14 for Pi, we approximate:<br>162*3.14<br>= 508.68 squa... | Feb 08, 2009 at 01:30:59PM | |
| $4.00 | Mathematics | Chapters 5-7 Cumulative Test | Full Solutions
...all answers ... | Feb 08, 2009 at 01:22:01PM | |
| $1.50 | Mathematics | MAT116 | Full Solutions
...greater than or equal to 9, so 2 is not a solution.<br>x = 5: 5-3=2. It is not greater than or equal to 9, so 5 is not a solution.<br>x= 19: 19-3 = 16. This is greater than or equal to 9,...... | Feb 08, 2009 at 01:09:33PM | |
| $20.00 | Mathematics | linear algebra | Full Solutions and Proofs
... Suppose v1 and v2 are linearly independent. That means if av1 + bv2 = 0 for some scalars a and b, then a and b are 0.<br>Given this, test v1 + v2,v1-v2 for linear dependence.<br>a(v1+v2)...... | Feb. 08, 2009 at 12:47:56AM | |
| $6.00 | Mathematics | MAT116 Week 7 | Full Solutions
...-170)<br>230 + .25x - 230/4 < 170 + .3x - .3*170<br>60 - 230/4 < .05x - .3*170<br>60 - 230/4 + .3*170 < .05x<br>53.5 < .05x<br>x > 1070<br><br>...... | Feb 07, 2009 at 11:51:46PM | |
| $0.25 | Mathematics | Algebra help needed | Full Solution
...<br>(Since 2pi radians = 360degrees)<br><br>So 5000 revolutions per minute is equal:<br>5000 r... | Feb 07, 2009 at 11:07:24PM | |
| $3.00 | Mathematics | Eigenvalues and Eigenvectors | Problems 5 and 9 only
...inus sqrt(16 - 4*1*5))/2<br>= (4 plus or minus sqrt(-4))/2<br>= (4 plus or minus 2i)/2<br>= (2 plus or minus i)<br>Thus l=2+i, and l=2-i.<br><br><br>Eigenvect...... | Feb 07, 2009 at 10:54:19PM | |
| $8.00 | Mathematics | Eigenvalues and Eigenvectors | Problems 1,2,3 and 23 only
.... In this case, we would let x=t. <br>Also, y=0.<br><br>So the solution is (x,y) = (t,0) = t(1,0)<br>Thus the set of eigenvectors with eigenvalue 2 is span{(1,0)}.<br><...... | Feb 07, 2009 at 10:35:30PM | |
| $4.00 | Mathematics | Orthonormal Vs. Orthogonal.... | Full Solutions
...<br><br>w1 = (12,-3,0)<br>w2 = (0,1,-12) - (0,1,-12).(12,-3,0)/(144+9) * (12,-3,0)<br> = (0,1,-12) - (-3)/153*(12,-3,0)<br> = (0,1,-12) + 3/153 (12,-3,0)<br> ...... | Feb 06, 2009 at 10:28:28PM | |
| $0.50 | Mathematics | the width of a rectangle is 5ft less tha | Full Solution
... the length"<br>means<br>w = l - 5<br><br>"The area of the rectangle is 176 ft squared"<br>means<br>lw = 176<br><br>Since w=l-5, ... | Feb 06, 2009 at 9:35:41PM | |
| $0.25 | Mathematics | mth help | Full Solution
...(1/9)x+b<br>Since we know (6,9) is on the line<br>9 = (1/9)*6 + b<br>b = 25/3<br><br>So the equation of the line is y=(1/9)x+25/3.<br>... | Feb 06, 2009 at 9:29:45PM | |
| $1.00 | Mathematics | John flies from Atlanta, Georgai to SanF | Full Solution
...stance = Speed * Time<br>2100 = (v+w)*4.8<br><br>Simplifying:<br>v-w= 375<br>v+w = 437.5<br><br>b and c)<br>Add the two equat... | Feb 06, 2009 at 9:21:03PM | |
| $1.00 | Mathematics | canoe paddling | Full Solution with steps
...pstream they are going against the current. So their speed is v-w.<br>This gives v-w=1.5<br><br>c and d)... | Feb 06, 2009 at 9:14:09PM | |
| $9.50 | Mathematics | math 115 week 8 ch 8 and ch 9 | All answers with graphs
... 17 - 8<br>= 20<br><br>3)<br>a)15000<br>b)30000<br>c)10000<br>d)20000<br>e) None, they all have the same increase in filings.<br><br>4)<b...... | Feb 06, 2009 at 8:55:52PM | |
| $0.50 | Mathematics | what is 15xy over 10x^2y-y^2x | Solution
...<br>Cancel a y to get:<br><br>15 / (10x - y)<br><br>There a... | Feb 05, 2009 at 9:02:52PM | |
| $0.50 | Mathematics | to solve aplications problem | Full Solution
...eatre, it's 1500 people/600 spaces = 2.5 people/space.<br><br>In the new theatre, there will be 2200 people. At the sa... | Feb 05, 2009 at 8:59:55PM | |
| $1.00 | Mathematics | Calculus- higher order derivatives | Full Solution
...)<br>The initial velocity is the velocity at time 0, that is, x'(0).<br><br>x'(0) = 100 - 25(0) = 100<br>So the initial velocity is 100 m/s.<br><br>b) When the...... | Feb 05, 2009 at 8:14:26PM | |
| $1.00 | Mathematics | Please help me solve this algebra problem! | Full Solution
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...matrix times a 3x1 matrix... | Dec 02, 2008 at 3:11:17PM | |
| $1.00 | Mathematics | q 15/7 | Solution
...<br><br>Refer to rows as R1,R2,R3.<br>Replace R2 with 3R2 + 2*R1<br>Replace R3 with 3*R3 - 2*R1<br>3 -2 -3 1 0 0<br>0 -1 -6 2 3 0<br>0 13 3 -2 0 3<br>...... | Dec 02, 2008 at 3:09:18PM | |
| $0.50 | Mathematics | q 17/7 | Solution
...fer to Row 1 as R1<br>Refer to Row 2 as R2<br>Replace R2... | Dec 02, 2008 at 2:52:56PM | |
| $1.00 | Mathematics | Systems of Equations and Inequalities | Full solution
...al. The technique of row reduction yields a matrix whose system should be very easy to solve. Since it is guaranteed to be the same solution as the starting system, we have solved the starting system...... | Dec 02, 2008 at 2:49:28PM | |
| $1.00 | Mathematics | 1/5 of 25 + 1/7 of 7 | Answer
...ations do multiplication first<br>1/5... | Dec 02, 2008 at 2:00:00PM | |
| $1.00 | Mathematics | 1/5 of 25 + 1/7 of 7 | Answer
...f operations do multiplication fir... | Dec 02, 2008 at 1:58:53PM | |
| $1.00 | Mathematics | Please help me understand this math question. | Answer to your question
... seems to be an error in the question. It should read "2... | Dec 02, 2008 at 1:52:37PM | |
