Tutorials Posted by gorgo20
| gorgo20 from University |
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| gorgo20's Posted Tutorials | |||||
| Bounty | Category | Question | Tutorial | Date Posted | |
|---|---|---|---|---|---|
| $12.00 | Mathematics | discrete mathematics | solutions to all problems
...s to all ... | Feb. 11, 2009 at 03:36:55AM | |
| $20.00 | Mathematics | need help graphing an eclipse. Find the | equation of ellypse symmetric: 2(y-3)^2+5(x+5)^2=10. Proof and graph inside.
... the line, which is (1,1), therefore we should have<br><br>(a-x)*1+(b-y)*1=0<br><br>which leads to a-x+b-y=0<br><br>Solving the system<br>a-x+b-y=0<br>a...... | Feb 10, 2009 at 2:59:18PM | |
| $0.50 | Mathematics | slope intercept | solution
...h slope m is<br><br>y-b=m(x-a)<br><br>In our case the equatio... | Feb 09, 2009 at 10:29:35PM | |
| $0.50 | Mathematics | find the x- and y- intercepts | solution
...t y=0 in the equation you will get<br><br>5x+4*0=8 therefore 5x=8 so x=8/5<br>... | Feb 09, 2009 at 10:26:19PM | |
| $1.00 | Mathematics | help me solve this algebra problem,slope | solution
... passes through (a,b)<br>then its equation is<br><br>y-b=... | Feb 08, 2009 at 3:34:26PM | |
| $5.00 | Mathematics | Subspaces linear question... | solution
...on(orthogonal complement of U2)=n-dim(U1)+n-dim(U2)=n<br><br>because dim(U1)+dim(U2)=n (this is because R^n is a direct sum of U1 and U2).<br><br>NOW, you have two spaces ,...... | Feb 07, 2009 at 12:52:16PM | |
| $5.00 | Mathematics | Diagonal,Orthogonal matrix | solution
...ent. pdf file. Le... | Feb 07, 2009 at 12:20:36PM | |
| $2.00 | Mathematics | homework help | solution
...ed<br><br>1. f(x) = 5x red<br>2. f(x) = 4x+... | Feb 07, 2009 at 11:04:31PM | |
| $2.00 | Mathematics | homework help | a+ solution
... 4 min 2 cells<br><br>after 8 min 4=2^2 cells<br><br><br>after 12 min 8=2^3 cells<br>................<br><br>after 4*n min 2^n cells<br>&l...... | Feb 07, 2009 at 10:46:24PM | |
| $0.25 | Mathematics | Questions | a+ step-by-step solution
...o solve it.<br>Multiply the first eq by 20, the system becomes<br><br>20x + 20y = 1500<br>20x + ... | Feb 07, 2009 at 09:49:22PM | |
| $2.00 | Mathematics | marbles | solution
...e<br>B2- the second blue marble<br><br>Drawing two marbles without replacement gives the following possibilities:<br><br>First Draw/S... | Feb 05, 2009 at 3:37:25PM | |
| $5.00 | Mathematics | advance cal homework | solution
...r changing the variables you get the integral<br><br>2/pi int from 0 to infinity of f(ut)/(1+t^2)dt<br><br>Now, f(ut)/(1+t^2) goes uniformly to f(0)/(1+t^2) since f is bounded,...... | Feb 05, 2009 at 03:56:19PM | |
| $3.00 | Mathematics | i need help with trig graphs #36,48 | quality solution
...<br>36. Start with the secant function<br><br>sec(x)<br><br>Compress it by a factor of 2 in the y-direction, get the graph of <br><br>1/2sec(x)... | Feb 05, 2009 at 02:35:27PM | |
| $1.00 | Mathematics | an airplane takes off at a 10degree angle and travels at the rate of 250ft/sec. approximately how long does it take the | quality solution
...<br>therefore<br><br>sin(10 degrees)=15000/x<br><br>so<br><br>x=15000/s... | Feb 05, 2009 at 01:51:37PM | |
| $1.00 | Mathematics | college algebra | quality solution
...<br><br>where a is the ... | Feb 05, 2009 at 01:45:04PM | |
| $1.00 | Mathematics | a builder wishes to construct a ramp 24feet long that rises to a height of 5.0 feet above level ground. approximate the | quality solution
...theta=arcsine of 5/24= 0.20987 ... | Feb 05, 2009 at 01:42:09PM | |
| $1.00 | Mathematics | An ice cube tray makes 12 ice cubes. Eac | SOLUTION
...olume equal to<br><br>length x width x he... | Feb 04, 2009 at 3:11:55PM | |
| $0.50 | Mathematics | Calculus | solution
...(1-1/10)=60/90=2/3=0.6666666....<br><br><br>the essential formula used is<br><br>1+r+r^2... | Feb 04, 2009 at 3:06:42PM | |
| $1.00 | Mathematics | Prove by induction summation of i^4 wher | the inequality you want to prove is not correct
...nd, the sum of i^k is in the order of n^(k+1), it... | Feb 04, 2009 at 10:21:41PM | |
| $0.50 | Mathematics | Calculus | solution
...ity (x-3),<br>not take the square root of x and then sub... | Feb. 03, 2009 at 12:47:24AM | |
| $0.50 | Mathematics | Calculus | solution
...H(t) = t^3 + t2 +5... | Feb. 03, 2009 at 12:44:35AM | |
| $1.00 | Business | math word problem | solution
...e<br><br>t/3=the landscaping costs <br>... | Feb 02, 2009 at 4:23:08PM | |
| $2.00 | Mathematics | Double Integral Proof | easy
...<br>b) well, by the first formula provided in question b) you notice that the square ... | Feb 02, 2009 at 04:37:18PM | |
| $5.00 | Mathematics | BUSINESS MATH PLEASE HELP | solution
...tteries=x<br>number of small boxes of ... | Feb 01, 2009 at 12:28:09PM | |
| $2.00 | Mathematics | more with intermediate value thm stuff... | solution
...set <br>{x in [a,b] | f(x)<x} such <br>that xn converges to c. Therefore taking limits in the inequality f(xn)<xn we get f(c)<=c.<br><br>Now, if we assume that f(c)<...... | Feb 01, 2009 at 12:12:42PM | |
| $13.00 | Physics | Physics HELLPPPPPPPPPPPPPPP | solution (also checked with math software)
...n is constant, equal to<br>23.144mps<br><br>3. at time 2.667 the vertical ve... | Jan 31, 2009 at 4:54:43PM | |
| $5.00 | Physics | A man stands on the roof of a 19.0 m tal | solution
...hen the ball hits the gr... | Jan 31, 2009 at 4:35:03PM | |
| $2.00 | Engineering | algebra | solution
...er to yo... | Jan 31, 2009 at 11:09:22PM | |
| $0.25 | Mathematics | mth help | solution
...the slope is... | Jan 30, 2009 at 5:42:00PM | |
| $5.00 | Mathematics | Calculus | solutions
...<br><br>then differentiate(the first int is differentiated with the chain rule)<br><br>(t^4)^4*4t^3-t^4<br><br>which gives<br><br>4t^19-t^4<br><...... | Jan 30, 2009 at 4:12:42PM | |
| $2.00 | Engineering | math 450 | solution
...formula for the solu... | Jan 30, 2009 at 3:30:11PM | |
| $1.00 | Engineering | algebra 1 | solution
...correct... | Jan 30, 2009 at 3:12:15PM | |
| $1.00 | Engineering | math12 | solution
...tion get<br><br>x^2=36<br>y^3=64<br><br>... | Jan 30, 2009 at 3:10:44PM | |
| $1.00 | Mathematics | Calculus | solution also checked with math software
...ion at that point theref... | Jan 30, 2009 at 1:49:07PM | |
| $1.00 | Mathematics | Calculus | solution also checked with math software
...e is 0 therefo... | Jan 30, 2009 at 1:46:48PM | |
| $1.00 | Mathematics | Calculus | solution also checked with math software
...<br><br><br>(fd)-f(0))/d=(5d^2+3d+4-4)d=5d+3<br>t... | Jan 30, 2009 at 1:45:15PM | |
| $1.00 | Mathematics | Calculus | solution
...1)=26/2=13<br><br>derivat... | Jan 30, 2009 at 1:40:40PM | |
| $0.75 | Mathematics | Calculus | solution
...g(x) = 4x... | Jan 30, 2009 at 1:37:03PM | |
| $1.00 | Mathematics | Calculus | solution also checked with math software
...peak,( therefore<br><br>the vertex).<br><br>the vertex is<br>... | Jan 30, 2009 at 1:35:24PM | |
| $2.00 | Engineering | math 2 | solution also checked with math software
...<br>220+x=2/3y=2/3(510... | Jan 30, 2009 at 11:48:29PM | |
| $1.50 | Engineering | algebra | solution also checked with math software
... the plane<br>w speed of the sh... | Jan 30, 2009 at 11:39:42PM | |
| $1.50 | Engineering | math 450 | solution also checked with math software
...0<br><br>therefore the smal... | Jan 30, 2009 at 11:22:51PM | |
| $2.00 | Engineering | math 13 | solution
...the seco... | Jan 30, 2009 at 11:09:43PM | |
| $1.00 | Engineering | math 21 | solution
...x-y=8, the same as the... | Jan 30, 2009 at 11:08:07PM | |
| $1.50 | Engineering | math12 | solution
... 3*v<br><br>the bicyclist 3*3*v<br><br>d... | Jan 30, 2009 at 10:59:08PM | |
| $1.00 | Mathematics | Write the following repeating decimal as a fraction 1.4444.... | solution also checked with math software
... correc... | Jan 30, 2009 at 10:55:25PM | |
| $1.00 | Engineering | math 2 | solution also checked with math software
...=0<br><br>solvin... | Jan 30, 2009 at 10:52:00PM | |
| $1.00 | Mathematics | simplify 4(3x+2)-5(x-4) | solution
...0=7x+2... | Jan 30, 2009 at 10:44:54PM | |
| $1.00 | Engineering | title | solution
...y+z)=9<br><br>xz/(x+z)=8<br><br><br>solvin... | Jan 30, 2009 at 10:28:29PM | |
| $2.50 | Mathematics | MAT 115 Week 7 NEED help with 1 problem | solution also checked with math software
... it intersects the vertical line ... | Jan 30, 2009 at 08:50:07PM | |
| $3.00 | Mathematics | Appendix C, Math 117 | solutions to all problems, also checked with math software
...ll proble... | Jan 29, 2009 at 09:14:01PM | |
| $0.25 | Mathematics | equation of line in slope intercept form | solution
...<br>y-3=2(x... | Jan 28, 2009 at 2:30:12PM | |
| $0.50 | Mathematics | graph and slope | solution
...ng at the x and y intercepts<br>that is, the... | Jan 28, 2009 at 2:27:31PM | |
| $0.50 | Mathematics | graph and slope | solution
...ok at the x and y intercepts, that is,<br>whe... | Jan 28, 2009 at 2:23:13PM | |
| $0.50 | Mathematics | graph and slope | solution
...ul when you identify th... | Jan 28, 2009 at 2:15:35PM | |
| $0.50 | Mathematics | graph and slope | solution
... soluti... | Jan 28, 2009 at 2:11:11PM | |
| $0.25 | Mathematics | find the slope of the line | solution
...5 corre... | Jan 28, 2009 at 1:16:21PM | |
| $0.25 | Mathematics | find the slope of the line | solution
...7-(-7))... | Jan 28, 2009 at 1:14:48PM | |
| $0.25 | Mathematics | find the slope of the line | solution
...-(-7))=... | Jan 28, 2009 at 1:12:51PM | |
| $0.50 | Mathematics | please help me with this algebra equation! "] | solution
...orrect ... | Jan 28, 2009 at 1:06:36PM | |
| $2.50 | Mathematics | I can not figure out how to work these problems | all except 3,11,15,16
...<br>train B catch up to train A at 2.37+ 48min = 3.25pm<br><br>7. 2004 19245<br> 2008 11337<br> -1977*t+27153=11160 so t=8.0895<br>8. The slop... | Jan 28, 2009 at 1:04:26PM | |
| $1.00 | Engineering | math202 | solution
...the first<br><br><br>2*x^2-3*x*(2*x-7)... | Jan 27, 2009 at 4:14:25PM | |
| $0.25 | Mathematics | distance/rate story problem | solution
...northbound train travels in 4 hours 4*(v+20)<br><br>the southbound train travels in 2... | Jan 27, 2009 at 4:03:17PM | |
| $0.25 | Mathematics | find the x- and y-intercepts | solution
...<br>if x=-1 then y=-1+4=3<br>if x=4 then y=4+4=8<br><br>so on and so forth<br>... | Jan 27, 2009 at 3:56:29PM | |
| $4.00 | Mathematics | Invertible Matrix and Semelarity of Matrixes.. | solution by a math PhD
...k^2v <br>so<br><br>nkv=k^2v<br><br>Since v has at least one non-zero compoenent we get that<br><br>nk=k^2 so either k=0 or k=n<br><br>Therefore...... | Jan 27, 2009 at 2:43:50PM | |
| $4.00 | Mathematics | Diagonalizable matrix problem,not complicated | solution by a math PhD
... that<br>A=PDP^(-1) is<br><br>0 2 2<br>1 0 1<br>0 1 2<br><br><br>the inverse of P is<br><br>1/2 1 -1<br>1 0 -1<br>...... | Jan 27, 2009 at 2:19:01PM | |
| $4.00 | Mathematics | Diagonalizable matrix proff | solution by a math PhD
...ore k=0.<br><br>Now the second part.<br>Your statement is equivalent to 'If A is diagonalizable then A is 0.'<br><br><br><br>Assume A is diagonalizable...... | Jan 27, 2009 at 2:03:43PM | |
| $0.25 | Mathematics | Eigenvalue,matrix etx.. | solution by a math PhD
...corresponding to 1has dimension 2.<br><br>But all eigenvectors(x,y) satisfy<br><br>[0,a; 0 0]*(x,y)'=(0,0) which leads to<br><br>condition ax=... | Jan 27, 2009 at 1:53:13PM | |
| $4.00 | Mathematics | Diagonalizable matrix problem | solution by a math PhD
...he diagonal entries)<br><br>Case a different than -1<br>The eigenvectors corresponding to -5 are vectors of the form (x,0) with x real.<br>Because the set of eigenvectors is...... | Jan 27, 2009 at 1:42:29PM | |
| $5.00 | Mathematics | maths/excel | table and graph with excel
...e attach the grap... | Jan 26, 2009 at 08:17:38PM | |
| $10.00 | Mathematics | Mat 115 Ch. 3 and 4 test | answers to all questions, also checked with math software
...in the attach all an... | Jan 26, 2009 at 03:38:25PM | |
| $0.25 | Mathematics | math word problem | solution
...ers. The first one has 120 pages,<br>the second one ha... | Jan 26, 2009 at 01:47:23PM | |
| $1.00 | Mathematics | continuous interval | solution by a math PhD
...ause f is continuous<br>either f(x)-y>0 for any x in [a,b] or<br><br>f(x)-y<0 for any x in [a,b].<br><br>(The basic principle is that if a continuous function on...... | Jan 25, 2009 at 5:13:26PM | |
| $2.00 | Mathematics | Min and max proof | solution by a PhD
...y the def of the infimum value of a set, there exists yn=f(xn) such that yn converges to m.<br>Here xn is in [a,b] therefore by the Cesaro lemma<br><br>xn has a sub... | Jan 25, 2009 at 4:49:24PM | |
| $1.00 | Engineering | factors 1 | solution
...(7ax+3by)(7ax-3by) then use the fo... | Jan 25, 2009 at 4:39:06PM | |
| $1.00 | Mathematics | prove continuous function is bounded | solution
... to infinity or minus infinity.<br><br>But because the sequence xn is bounded (above by b, below by a) it contains a convergent se... | Jan 25, 2009 at 4:34:00PM | |
| $1.00 | Mathematics | find the value | solution
...<br>after 15 pa... | Jan 25, 2009 at 3:47:45PM | |
| $0.25 | Mathematics | equation | solution
...4|=4 there... | Jan 25, 2009 at 3:34:41PM | |
| $1.00 | Mathematics | equation | solution also checked with math software
...<br>the right ... | Jan 25, 2009 at 3:31:49PM | |
| $1.00 | Mathematics | linear equations | solution
...(-2)^2-4*(... | Jan 25, 2009 at 3:29:34PM | |
| $1.00 | Mathematics | functions | solution
...2,7), (4,6), (6,5)}<br><br>i... | Jan 25, 2009 at 3:27:22PM | |
| $1.00 | Mathematics | functions | solution
..., (2,7), (4,6), (6,5)}<br>is... | Jan 25, 2009 at 3:25:27PM | |
| $1.00 | Engineering | theorem | solution
...ne prime ... | Jan 25, 2009 at 1:32:35PM | |
| $0.50 | Engineering | factors 3 | solution(checked also with math software)
...*x+25) cannot be factored further(unless you allo... | Jan 25, 2009 at 1:22:04PM | |
| $1.00 | Engineering | factors 2 | solution(checked also with math software)
...erefore<br><br>x-(-1)=x+1 is one factor, then<br><br>(x^3-x^2-17x-15)/(x+1)=x^2-... | Jan 25, 2009 at 1:14:38PM | |
| $0.75 | Mathematics | math ratios | solution(checked also with math software)
...>32400=time*60<br><br>then tim... | Jan 25, 2009 at 11:43:31PM | |
| $0.50 | Mathematics | Kevin ate 1/6 of one pizza,1/4 of anothe | solution
.../12+1/3=7/6&... | Jan 23, 2009 at 12:30:00PM | |
| $1.00 | Mathematics | find two numbers with a sum of 130 and a | solution also checked with math software
...<br>xy=4000<br><br>from the first y=130-x<br>replace in t... | Jan 23, 2009 at 12:22:51PM | |
| $1.00 | Mathematics | solution | 0.50
...and you ge... | Jan 23, 2009 at 12:16:33PM | |
| $0.25 | Mathematics | A...... of an equation is a number tha | solution
...s a number th... | Jan 23, 2009 at 12:12:22PM | |
| $0.50 | Mathematics | need help simplying equation | solution also checked with math software
... - 56 - 8/x + 8<br><br>common denominator ... | Jan 23, 2009 at 10:12:23PM | |
| $0.25 | Mathematics | need help with finding LCM | solution
...utive, therefore the GCD of<br><br>p-1,p,p+1 wh... | Jan 23, 2009 at 10:05:04PM | |
| $3.00 | Mathematics | Help I do not understand this | correct solutions checked also with math software
...95<162.45<br><br>124.95-76.95 <0.25(t-600)< 162.45-76.95 meaning<br><br>48<0.25(t-600)<85.5 divide by 0.25 all terms<br><br>192<t-600<342<br...... | Jan 23, 2009 at 02:31:10PM | |
| $1.00 | Mathematics | what is the next term in this sequence?4 | solution
...us two<br>by summing them a... | Jan 21, 2009 at 3:32:55PM | |
| $1.00 | Mathematics | Calculus | solution to 9
...+ integral from 2 to 7 +integr... | Jan 21, 2009 at 05:59:12PM | |
| $4.00 | Mathematics | Calculus | Solutions to 12,13,14,15,16,17,18,19
...e of (x+2)^2 is (x+2)^3/3<br>therefore <br>the integral is<br><br>antiderivative in (-4) - antiderivati... | Jan 20, 2009 at 6:24:20PM | |
| $2.00 | Mathematics | Calculus | solutions to 4,5,6,7,8
...erefore the integral is half the area of a disk of radius 2=4*pi <br><br>5. <br>let f(x)=xsin(x)<br>left sum= pi/6*f(0)+(pi/4-pi... | Jan 20, 2009 at 5:03:21PM | |
| $3.00 | Mathematics | series sum | maclaurin series, my solution uses complex numbers/Moivre's formula
...ccos(3/squarerootof(13))<br><br>therefore 3+2i=squarerootof(13)*(cos(a)+isin(a))<br><br>and <br>(3+2i)^n = squarerootof(13)^n*(cos(n*a)+isin(n*a)) (Moivre'... | Jan 20, 2009 at 2:48:02PM | |
| $5.00 | Mathematics | Need help by someone showing work and answer so I can check mine. | solutions
...)*32=24<br><br>two solutions, <br><br>x=24,y=32<br>x=-24, y=-32<br><br>17. A grasshopper can jump 20 times its length. If jumping ability in humans were...... | Jan 20, 2009 at 2:34:22PM | |
| $0.50 | Mathematics | Multivariable calculus maximum minimum | solution
...-a*(x^2+y^2+z^2-36)<br><br>find the critical(stationary) points of F<br>2x-2-2ax=0<br>2y-4-2ay=0<br>2z-4-2az=0<br>x^2+y^2+z^2-36=0<br><br> get x=1/(1-a)...... | Jan 20, 2009 at 02:47:31PM | |
| $0.50 | Mathematics | Multivariable calculus Directional Derivatives | directional derivatives
...direction as you said.<br><br>2. Depth remains the same when the directional derivative is 0, therefore we shoudl have<br> <br>-16v1-54v2=0 so v1=-54 and v2=16 or any... | Jan 20, 2009 at 02:01:17PM | |
| $1.00 | Mathematics | Help me understand this Math question. F | solution
...h<br><br>then perimeter= 2*w+2*l=70<br>on the oth... | Jan 19, 2009 at 1:55:57PM | |
| $0.75 | Mathematics | Fractions | solution
...<br>5/6 -13/15=(common de... | Jan 19, 2009 at 1:49:47PM | |
| $0.75 | Mathematics | MAke it an equations | solution
...hird score<br><br>since the average is 84 we ne... | Jan 19, 2009 at 1:47:13PM | |
| $1.00 | Mathematics | Algebra II question | solution
...tient = 2x^2-4x+9<br>re... | Jan 18, 2009 at 3:31:30PM | |
| $8.00 | Mathematics | please help me,i need help today (math) | complete solution
...<br> Minimum<br>The ver... | Jan 18, 2009 at 3:00:41PM | |
| $0.50 | Physics | please give me the answer | solution
...13.54 g/cm^3<br><br>b. mass... | Jan 18, 2009 at 1:27:46PM | |
| $0.50 | Mathematics | Please help me understand how to calculate the area of a shape | area of a rectangle
...sides 2,3 cm... | Jan 18, 2009 at 1:22:28PM | |
| $1.00 | Mathematics | solve the equation for 0 is less than or | solution
... cos(x)=0 it follows x=pi/2,x=3pi/2<br><br>if 2sinx-1... | Jan 18, 2009 at 1:14:54PM | |
| $1.00 | Mathematics | solve by substitution:2x-y=-23x-2y=- | solution
..., solving for y we get<br><br>y=2x+2... | Jan 18, 2009 at 1:10:02PM | |
| $2.00 | Mathematics | Math Assistance | complete solution
...-27)<br><br>Line of symmetry x=5<br>Minim... | Jan 18, 2009 at 1:07:40PM | |
| $0.25 | Mathematics | system of equations word problem | solution
...subtract first eq from the second... | Jan 18, 2009 at 12:46:57PM | |
| $1.00 | Mathematics | find the slope | solution
... line through the points is<br><br>(y2-y1)... | Jan 18, 2009 at 10:13:39PM | |
| $5.00 | Mathematics | RA continuous function proof | solution
...it of 0 =0<br>limit from right of f = limit of 0 =0<br>value of f in x=0<br>the three are equal therefore f is continuous<br>when x<0,x>1<br><br><br>If...... | Jan 18, 2009 at 01:18:13PM | |
| $2.00 | Mathematics | please help me (math) | solution
...he corresponding y-value is 9-0^2=0<br><br><br>f... | Jan 18, 2009 at 01:07:16PM | |
| $3.00 | Mathematics | advertising | Matlab code to do computation
...9<br>39.0 34.6 41.7 34.7<br>33.8 41.7 39.4 36.1<br>43.4 36.4 44.3 36.4<br>34.4 35.8 43.3 35.1 ]<br><br>q=[Q(1,:),Q(2,:),Q(3,:),Q(4,:),Q(5,:),Q... | Jan 17, 2009 at 4:19:04PM | |
| $1.00 | Mathematics | somebody help | solution
...ide<br><br>second longest side is x-4<br><br>Shortest sid... | Jan 17, 2009 at 2:58:22PM | |
| $0.50 | Mathematics | help please | solution
...e three games will cost<br><br>3*... | Jan 17, 2009 at 2:22:48PM | |
| $1.00 | Mathematics | How would you find out if x+3y=11 and 2x | solution
... solving you can say when a system is consistent or inconsistent, independent or not by looking at the matrix A and extended matrix A1 of the system.<br><br>if r... | Jan 17, 2009 at 2:16:51PM | |
| $0.50 | Mathematics | If P=2y-6xy-3x and Q=4-5y find the value | solution
...2*(2y-6xy-3x... | Jan 17, 2009 at 2:07:02PM | |
| $1.00 | Mathematics | Lee's analysis | solution
...<br><br>If you have 38cm and you use all the material you can only construct a rec... | Jan 17, 2009 at 1:58:14PM | |
| $5.00 | Mathematics | math 2b - c | complete solution
...eight is attained after 1 seconds.<br><br>In ge... | Jan 17, 2009 at 1:20:25PM | |
| $4.00 | Mathematics | math 2b -b | complete solution
...h with the x-axis, therefore the roots are 1,-5.<br><br>b) the function has a minimum at (-2,-9)because that point is the lowest on the graph. The minimum value is -9.<br>the...... | Jan 17, 2009 at 1:05:49PM | |
| $3.00 | Mathematics | math 2b - a | complete solution
...2+bx+c=0<br><br>are [-b(+or -)squareroot of(b^2-4ac) ]/2a<br><br>in our case a=6,b=3, c=-18<br><br>the roots are<br><br>[-3(+ ... | Jan 17, 2009 at 12:47:23PM | |
| $1.00 | Mathematics | please simplify like terms | solution
...-(-7b-2(2a-2b+3a))... | Jan 17, 2009 at 12:09:40PM | |
| $0.75 | Mathematics | find 5 numbers less than twenty that onl | solution
...5,7,13 th... | Jan 17, 2009 at 11:46:23PM | |
| $0.30 | Mathematics | this is for a science class | solution
...1.0cm=1.0/10dm=0.1dm<br><br>7km=... | Jan 17, 2009 at 11:24:42PM | |
| $0.75 | Mathematics | convert to meters 506mm=---m | solution
...<br><br>1mm = 1/1000 m<br><br>so<br><br>... | Jan 17, 2009 at 11:09:48PM | |
| $0.50 | Mathematics | mutually exclusise events | solution
...B)-p(A and B)=p(A)... | Jan 17, 2009 at 02:40:50PM | |
| $2.00 | Mathematics | Calculation | solution
...d = integral of velocity<br><br>right sum= 10*... | Jan 17, 2009 at 02:25:56PM | |
| $0.50 | Mathematics | i need the final answer of this exercic | continuously compounded interest
...e)=2500*e^(n*0.053)=7500<br><br>therefore<br><br>e^(n*0.053)=7500/... | Jan 17, 2009 at 01:42:05PM | |
| $0.75 | Mathematics | Write The fraction 11/15 as a sum of thr | solution
...ore 11=5a+3b, so a=1 b=2<br><br>11/15=1/3+2/5=1/3+1/5+1/5<br><br>11/15... | Jan 17, 2009 at 01:31:55PM | |
| $0.50 | Mathematics | ratio,proportion,and percent | solution
... equal t... | Jan 16, 2009 at 4:43:25PM | |
| $0.50 | Mathematics | ratio,proportion,and percent | solution
...3+57)=33... | Jan 16, 2009 at 4:40:53PM | |
| $0.75 | Mathematics | If x < 0, find the values of 2 7x | solution
...s(therefore positive in y-value), it goes up to infinity, therefore... | Jan 16, 2009 at 02:05:20PM | |
| $0.25 | Mathematics | ratio,proportion,and percent | solution
...5 percent is... | Jan 16, 2009 at 01:40:02PM | |
| $0.25 | Mathematics | ratio,proportion,and percent | solution
...al amount... | Jan 16, 2009 at 01:37:29PM | |
| $0.50 | Mathematics | ratio,proportion,and percent | solution
...e <br><br>150/(weight on neptun... | Jan 16, 2009 at 01:33:10PM | |
| $1.00 | Mathematics | ratio,proportion,and percent | solution
...deductions... | Jan 16, 2009 at 01:27:40PM | |
| $1.00 | Mathematics | what fraction is equivalent to 9.40 | solution
...4/10=... | Jan 16, 2009 at 01:25:36PM | |
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...7+8a put 7 on the... | Jan 16, 2009 at 01:22:23PM | |
| $0.50 | Mathematics | Problems solving for x | solution
...is negative we have in the end x=-2.<br>We go... | Jan 16, 2009 at 01:14:54PM | |
| $0.75 | Mathematics | divisibility tests | solution
...y if 43682 is divisible by 11.<br><br>43682=11*3971 + 1<br><br>Therefore, 43682 is not divisible by 11,... | Jan 16, 2009 at 01:11:12PM | |
| $0.50 | Mathematics | decimals | solution
...<br>it remains t... | Jan 16, 2009 at 01:03:00PM | |
| $1.00 | Mathematics | A farmer has 3 sets of animals to buy fr | solution
... will become bigger that 100.<br><br>z=1 x=18 y=81 solution 18 seep,81 cows,1 horse<br><br>z=2 x=36 y=62 ... | Jan 16, 2009 at 01:01:12PM | |
| $0.75 | Mathematics | find the percent of decrease 27 to 23 | solution
...e between 27 and 23 is 4.<br>... | Jan. 16, 2009 at 12:47:07AM | |
| $1.00 | Mathematics | Rectangle ABCD si divided into five cong | Solution
... out of 5 congruent is by putting the squares next to one another.<br><br>Suppose th... | Jan. 16, 2009 at 12:40:10AM | |
| $0.50 | Mathematics | what is the square root of 14400 | solution
...400 =(square r... | Jan 15, 2009 at 5:42:29PM | |
| $0.50 | Mathematics | David is thinking of a number. He subtr | solution
...)/8+3<br><br>((x-4)/8+3)*2<br><br>And we should get<br>(... | Jan 15, 2009 at 4:56:23PM | |
| $0.25 | Physics | Please help me understand this physics question. | solution
...ies x'=v, so<br> x(t)=at^2/2+C<br><br>where C is a constant. Because distance traveled after 0 seconds is 0 we get x(0)=C=0<br><br>therefore x(t)=a... | Jan 15, 2009 at 3:40:54PM | |
| $0.25 | Mathematics | Measurement | solution
...ume=len... | Jan 15, 2009 at 3:31:27PM | |
| $0.50 | Mathematics | Measurement | solution
...here will be 12 mont... | Jan 15, 2009 at 3:29:48PM | |
| $1.00 | Mathematics | Measurement | solution
...fore<br><br>5 kilome... | Jan 15, 2009 at 3:26:40PM | |
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...4*8 cubic fe... | Jan 15, 2009 at 3:24:38PM | |
| $1.50 | Mathematics | 3 Graph Questions | solution
...ph goes up to infinity. <br><br>c) x-coordinate of the vertex is exactly in the middle of the roots. Since the roots are 1, -5 the x-coordinate... | Jan 15, 2009 at 3:22:06PM | |
| $0.50 | Mathematics | cats, dogs,and mice | solution
... for dogs is bigger than 7*15=105>100<br><br>Besides, since 14x=3z, x is a multiple of 3, therefore<br>x=3 or 6<br><br>if x is 3 we get z=14 and replac... | Jan 15, 2009 at 2:24:34PM | |
| $0.50 | Mathematics | in order to make a negative exponent pos | solution
...tive b is equal to 1 over (a to the po... | Jan 15, 2009 at 1:17:00PM | |
| $0.25 | Mathematics | Graph Question | solution
...h and see where the graph<br>intersects the x-a... | Jan 15, 2009 at 1:13:37PM | |
| $3.00 | Mathematics | MATH 117 | appendix c solved
... attac... | Jan 15, 2009 at 11:44:31PM | |
| $1.00 | Mathematics | whole numbers | solution
...uire three times this amount, 3*36,... | Jan 15, 2009 at 10:30:35PM | |
| $1.00 | Mathematics | whole numbers | solution
...<br>369 tickets * 45 apiece =16605<br><br>now a... | Jan 15, 2009 at 10:23:57PM | |
| $1.00 | Mathematics | whole numbers | solution
...0=15<br><br>15:0 same as the first<br><br>... | Jan 15, 2009 at 10:18:24PM | |
| $1.00 | Mathematics | whole numbers | solution
... discount<br> ... | Jan 15, 2009 at 10:15:39PM | |
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... number of days<br>... | Jan 15, 2009 at 10:09:40PM | |
| $0.75 | Mathematics | nunbers and operations | solution
...both sides,<br>get... | Jan 15, 2009 at 10:03:35PM | |
| $1.00 | Mathematics | a trapezoid has an area of 82cm2. find t | area of a trapezoid
...<br>3h,3b1,3b2<br>therefore the area will be<br><br>3h(3b1+3b2... | Jan 15, 2009 at 06:20:31PM | |
| $1.00 | Mathematics | nunbers and operations | solution
... 35,<br>get<br><br>(x/35)*35=7*... | Jan 15, 2009 at 02:44:44PM | |
| $1.00 | Mathematics | nunbers and operations | prime factors
...tors are the prime num... | Jan 15, 2009 at 02:30:28PM | |
| $1.00 | Mathematics | Factoring Complex Trinomials 3x^2-8x+4= | factor
...ns<br>get 2,2/3<br><br>The factorisation is<br><br>3*(x-2)(x-2/3) whi... | Jan 15, 2009 at 02:26:50PM | |
| $1.00 | Mathematics | nunbers and operations | equation
...55. This sum should equal 605. therefore<br><br>x... | Jan 15, 2009 at 02:20:29PM | |
| $0.50 | Mathematics | Bret is presently nine years older than | systems of two equations
...two equations<br><br>n=m+9<br>6*(n+8)=7*(m+8)<br><br>Replace n in the secon equation by ... | Jan 15, 2009 at 02:16:39PM | |
| $1.00 | Mathematics | a file drawer is 45 inches long. If an e | quotient
... are 18 and each is 2.5 inches the tot... | Jan 15, 2009 at 01:54:25PM | |
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... of<br><br>5+4+0=9<br><br>giants s... | Jan 15, 2009 at 01:28:07PM | |
| $1.00 | Mathematics | nunbers and operations | average price
...l to the sum of all pri... | Jan 15, 2009 at 01:24:33PM | |
| $0.50 | Mathematics | genaral review | quotient
...pieces=total length/(len... | Jan 15, 2009 at 01:20:12PM | |
| $0.25 | Mathematics | what is the supplement of an angle of 10 | supplement of an angle
...f an angle a=1... | Jan 15, 2009 at 01:17:30PM | |
| $0.50 | Mathematics | vector proof | cross product
...cross product is the same because<br><br>axb=|a|*|b|*sin(theta)*n<br><br>where |a| is the magnitude of a, theta is <br>the angle between the vectors, n is a unit vector...... | Jan 15, 2009 at 01:11:53PM | |
| $0.25 | Mathematics | vector proof | vectors
...et<br><br>a_1=0<br>a_2=0<br><br>which gives a=<0,0>=0<br><br><br>2. We have <br>p*a=<p*a_1,p*a_2>=0<br>A vector is zero when...... | Jan. 15, 2009 at 12:51:29AM | |
| $1.00 | Mathematics | Find the x- and y-intercepts of -x+2y=8 | x and y intercepts
...ercept is the y coordinate of the point where <br>the line intersects the ... | Jan. 15, 2009 at 12:43:20AM | |
| $0.50 | Mathematics | how many feet in 7 yards? | conversion yard to feet
... yard=3fe... | Jan 14, 2009 at 3:56:41PM | |
| $1.00 | Mathematics | Find the general solution for sin(4x+10)=sin50 | trig formulas
...in((a-b)/2)cos((a+b)/2)<br><br>We then have that<br>2sin(2x-20)*cos(2x+30)=0<br>so either <br><br>sin(2x-20... | Jan 14, 2009 at 3:30:41PM | |
| $2.00 | Mathematics | Please help me understand this math question | permutations
...is<br>m1,m2,w1<br>m1,w1,m2<br>m2 m1 w1<br>m2 w1 m1<br>w1 m1 m2<br>w1 m2 m1<br><br>that's 6 possibilities. 6=3! (the factorial of 3, that is, 1*2*3<br...... | Jan 14, 2009 at 2:36:23PM | |
| $1.00 | Mathematics | Ch. 4 in Basic Mathematical Skills with Geometry (6th ed.) | representation of decimal numbers
...e/1000 <br><br><br><br>Therefore 0.120 would be<br><br>0+1/10+2/100+0/1000=0+1/10+2/100=0.12<br><br>0... | Jan 14, 2009 at 2:10:32PM | |
| $0.50 | Mathematics | genaral review | total cost
...s 0.87/3= 0.29 one notepad<br>highlighters......1 for 1... | Jan 14, 2009 at 2:01:25PM | |
| $0.50 | Mathematics | sally has 100 apples she gives 80% of th | Percentages
...20 apples she gives 20% to Tom, that is (2... | Jan 14, 2009 at 11:03:13PM | |
| $10.00 | Mathematics | Linear Equations | Analytic geometry
... - z - 1 = 0 <br>is (4,-3,-1), that is, it has components equal to the coefficients of x,y,z in the equation of the plane.<br><br>Similarly, a vector that is normal to the second...... | Jan 14, 2009 at 10:40:53PM | |
| $0.25 | Mathematics | Just a few steps left> r(s) =? | you've made a mistake
...answer. <br><br>therefore, after recalculating the integral i pointed out before, your curve... | Jan 14, 2009 at 05:15:06PM | |
| $0.50 | Engineering | Finite Element Methods | your shape functions = continuous piecewise quadratics
...h shape function f corresponding to a given node x has the property that f(x)=1 and f(y)=0 for every other node y on the given element.<br><br>To prove that your functions are suitable...... | Jan 14, 2009 at 03:01:58PM | |
