Monday

April 21, 2014

April 21, 2014

Number of results: 115,760

**Algebra**

Find an equation of the line having the given slope and containing the given point. M=6/7, (5,-2) The equation of the line is y =
*Tuesday, February 11, 2014 at 8:10pm by Pam*

**Algebra**

Find an equation of the line having the given slope and containing the given point. M=4/5,(3,-1) The equation of the line is y=
*Wednesday, February 12, 2014 at 9:24pm by Pam*

**Algebra**

Find an equation of the line having the the given slope and containing the given point. M=4/5,(7,-4) The equation of the line is y=?
*Thursday, February 13, 2014 at 8:28pm by Pam*

**math**

Oh, and once you find b you plug in the values of m and b into the equation and leave x and y for there can be any arbitrary point where you can find y for any values of x and vice versa.
*Friday, October 31, 2008 at 11:45pm by Sam*

**calculus**

Find an equation of the plane through the point and perpendicular to the given vector. (7, 1, 5) -3, 1, 2 I think I need the normal vector, but how do I find it? And then what do I do? Thank you.
*Thursday, August 25, 2011 at 3:37pm by lines & planes*

**algebra**

Explain how you find ordered-pair solutions of the equation 3x 5y = 15, and then find two such solutions.
*Friday, February 10, 2012 at 1:10am by lucy*

**algebra**

Explain how you find ordered-pair solutions of the equation 3x - 5y =15, and then find two such solutions.
*Sunday, February 12, 2012 at 4:59pm by lucy needs help now*

**Algebra**

Find a quadratic equation that has the numbers below as solutions. 1. 1/2,-10 2. 2/3,-5/7 How do I even do these problems? Those solutions are so hard to find.
*Friday, March 21, 2014 at 1:34pm by Anonymous*

**calculus**

find dy/dx, the slope call it m at the given point use the point in the equation to find b in y = m x + b
*Sunday, February 23, 2014 at 3:00pm by Damon*

**physics HELP MEEE SO CONFUSED**

The electric potential inside the sphere will be the same as it is on the surface so a=c. You can use the equation V=q/(4pi*8.89e-12*r) to find the potential where r is the radius from the center if that radius is greater than or equal to the radius of the sphere and q is the ...
*Tuesday, February 7, 2012 at 8:46pm by Epsilon*

**algebra**

Can you use algebra to find a quadratic equation if your know the coordinates of just ONE point on its graph? Can you use algebra to find a quadratic equation if your know the coordinates of just TWO points on its graph? If so, what information is needed?
*Thursday, October 6, 2011 at 11:56pm by Sejul*

**Math**

The quantity demanded each month of russo Espresso Makers is 250 when the unit price is $140; the quantity demanded each month is 1000 when th e unit price is $110. the suppliers will market 750 expresso makers if the unit price is $60 or higher. At a unit price of $80 they ...
*Monday, April 9, 2012 at 3:14pm by Terri*

**math**

Suppose there are 100 rabbits on an island and that the rabbit population can triple every half-year. Write an equation you could use to find the number of rabbits, R, after t, years. Using your equation, determine the amount of rabbits on the island in year 10. For the ...
*Tuesday, October 1, 2013 at 7:28pm by Monica*

**Finite Math**

The quantity demanded each month of russo Espresso Makers is 250 when the unit price is $140; the quantity demanded each month is 1000 when th e unit price is $110. the suppliers will market 750 expresso makers if the unit price is $60 or higher. At a unit price of $80 they ...
*Monday, April 9, 2012 at 1:44pm by Terri*

**statistics**

Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion (.30) and its Z score. (Pay attention to the sign.) Insert Z and other values in equation above to find the cutoff score.
*Thursday, April 19, 2012 at 8:18pm by PsyDAG*

**calculus**

The equation x^2 y+2xy^3=8defines y as a function of x,y=f(x), near x=2, y=1. a) Find dy/dx. b) Now, find the slope of the curve x^2y+2xy^3=8 when x=2, y=1.
*Wednesday, September 29, 2010 at 2:51pm by ibo*

**calculus**

Find an equation of the tangent line to the curve at the given point. y= (1+3x)^12 , (0,1) and find y' and y" y=cos(x^2) I got y' = -2xsin(x^2) i keep trying to get double prime but everything i try isnt working.
*Monday, October 8, 2012 at 9:00pm by michelle*

**algebra**

Can someone please explain these problems to me I have tried and cannot figure them out. 1)Use synthetic division to find p(-3) for p(x)=x^4-2x^3-4x+4 2)Find all the zeroes of the equation x^4-6x^2-7x-6=0
*Sunday, November 25, 2012 at 3:15pm by lee*

**Statistics**

Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion (.2000) and its Z score. Insert the Z score and other data into the equation above to find the raw score.
*Wednesday, March 21, 2012 at 7:26pm by PsyDAG*

**Precalculus**

1. Consider the curve y=x^2. a. write down (dy)/(dx) My answer: 2x The point P(3,9) lies on the curve y=x^2. b. Find the gradient of the tangent to the curve at P. My answer: 2*3=6 c. Find the equation of the normal to the curve at P. Give your answer in the form y=mx+c. My ...
*Monday, April 14, 2014 at 11:37pm by Anonymous*

**physics**

ok so the rate that the camera is dropped is the same as the balloon is the camera's initial velocity. the change in x is 50m and the acceleration is -9.8m/s^2 due to gravity. a) use the equation, change in x= Vot + 1/2at^2 to find the time for the camera to reach the ground ...
*Thursday, September 16, 2010 at 10:11pm by Heather*

**APChemistry**

It does; however, you asked for the NET ionic equation and not the ionic equation. If you use the ionic equation and cancel the ion common to both sides (the Na^+), the net ionic equation results. In addition, I see I made a typo in the molecular equation. It is NaOBr + HOH...
*Sunday, April 18, 2010 at 9:43pm by DrBob222*

**math**

(0,-5), m=3/2 a) find the equation of the line b) find three other points that go thru the line
*Thursday, August 27, 2009 at 11:35pm by Max*

**algebra**

1.)Find the equation of the circle with center (1, 3) and radius r =2. 2.)Find the area of the circle of the above problem?
*Sunday, December 5, 2010 at 4:32pm by Shan*

**Algebra **

Find the equation of the parabola with its vertex at (h,k). Vertex: (-2.1) Focus: (-5,1) I know I put it into (y-k)^2=4(p)(x-h) so (y-1)^2=4(p)(x+2). How do I find the value of p?
*Wednesday, March 19, 2014 at 11:16pm by Anonymous*

**Algebra **

Find the equation of the parabola with its vertex at (h,k). Vertex: (-2.1) Focus: (-5,1) I know I put it into (y-k)^2=4(p)(x-h) so (y-1)^2=4(p)(x+2). How do I find the value of p?
*Wednesday, March 19, 2014 at 11:16pm by Anonymous*

**Diff eqn- IVP**

The differential equation that governs the forced oscillation is shown below: 0.2 dy/dt + 1.2 dy/dt +2y = r(t) where r(t) is the external force. Given that r(t) = 5 cos 4t with y(0) = 0 . find the equation of motion of the forced oscillations
*Monday, March 14, 2011 at 7:36am by shasha*

**Math**

3s + 4j = 360 s + 3j = 220 Multiply second equation by 3, then subtract first from second. 3s + 9j = 660 5j = 300 Solve for j, then insert that value into either equation to find s.
*Sunday, February 16, 2014 at 2:03am by PsyDAG*

**statistics**

Z = (score-mean)/SD = (25-mean)/3 Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion (.1) that corresponds to a Z score. Use that Z score in the above equation to find the mean. Then use that mean and ...
*Thursday, February 16, 2012 at 11:58am by PsyDAG*

**Geometry PLEASE HELP ME**

pick a vertex. find the slope of the perpendicular to the opposite side. find the equation of the line with that slope, going through the vertex. pick another vertex and repeat find the intersection of the two lines. That's the orthocenter.
*Tuesday, December 11, 2012 at 2:11pm by BLEH*

**math**

With regards to question J: The variables x and y are connected by the equation y = x2 - x - 5. Some corresponding values of x and y are given in the table below. x -4 -3 -2 -1 0 1 2 3 4 5 y 15 7 a -3 -5 b -3 1 7 15 (a) Calculate the values of a and b (b) Use 2 cm to represent...
*Monday, January 24, 2011 at 12:34pm by jun*

**Math**

pick a vertex. find the slope of the perpendicular to the opposite side. find the equation of the line with that slope, going through the vertex. pick another vertex and repeat find the intersection of the two lines. That's the orthocenter.
*Friday, December 7, 2012 at 4:11pm by Steve*

**Math**

find the value of n. fractions. 34+n=1 It says find the value of n. this is a fraction question.What does n =? 3 - + n =1 4 3/4 + n = 1 n = 1/4 To prove, substitute 1/4 for n in the original equation: 3/4 + 1/4 = 4/4 = 1 I hope this helps and is what you were asking.
*Monday, February 5, 2007 at 7:28pm by Angelina*

**Pre-Calculus**

Im having trouble with this. Find an equation of the tangent line to the parabola at the given point and find the x-intercept of the line. x^2=2y (4,8)
*Sunday, March 22, 2009 at 6:21pm by Shirley*

**Pre-Cal**

Find an equation of the tangent line to the parabola at the given point, and find the x-intercept of the line. 17) x^2=2y , (-3,9/2) 18) y=-2x^2 , (-1,-2)
*Wednesday, April 15, 2009 at 10:38pm by Mike*

**maths**

Find the gradient of the straight line that passes through the points (3,6) and (-5,-2) and hence find the equation of the line, clearly showing each step of your method
*Sunday, February 20, 2011 at 7:52am by Mego*

**math**

find the slope-intercept equation of the line that has given characteristics slope = 3 and y-intercept is (0,9) the slope equation is y= how do I start this? I dont know why I always freeze up.. can someone please help me?
*Saturday, October 24, 2009 at 4:06pm by Anonymous*

**Math- urgent**

One more than 3 times a number is the same as 5 times the number, decreased by 15. Find the number. Assign the variable Write an equation Solve equation
*Wednesday, October 30, 2013 at 9:01pm by Sarah*

**Calculus 2**

how do I find the fluid force of a vertical semicircle that has been divided into three equal sectors of 60 degrees each. I know what the equation to find the fluid force for the whole semicircle is. but how do I find L(y) for each semicircle.
*Thursday, October 11, 2012 at 6:33pm by Laura*

**Math - derivative of sinusoidal (check)**

a) Find a function y=f(x) that satisfies the differential equation dy/dx = fifth derivative. This is one of the questions in my practice test, I tried the basic equation of the trig function such as f(x)= sin(x) or f(x)=-sin(x) however in the fourth derivative they reach the ...
*Monday, November 29, 2010 at 5:53am by Farah*

**MATHS**

i need a lil help with this If x=2 is a root of the equation 6x^3 - px^2 - 14x + 24=0, find p,hence, solve the equation 6*(2)3-p*(2)2-14*2+24=0 6*8-p*4-14*2+24=0 48-4p-28+24=0 Can take it from here? yes..i got p to be 11. I do not know what else to do from here to solve the ...
*Saturday, December 9, 2006 at 4:30pm by Kim*

**algebra II**

How do you know if a quadratic equation will have one, two, or no solutions? How do you find a quadratic equation if you are only given the solution? Is it possible to have different quadratic equations with the same solution? Explain. Provide your classmates with one or two ...
*Tuesday, October 7, 2008 at 1:33am by Nadia*

**algebra II**

How do you know if a quadratic equation will have one, two, or no solutions? How do you find a quadratic equation if you are only given the solution? Is it possible to have different quadratic equations with the same solution? Explain. Provide your classmates with one or two ...
*Tuesday, June 15, 2010 at 2:29pm by hollywood*

**Mathematics**

A space camera circles the Earth at a height of h miles above the surface. Suppose that d distance, IN MILES, on the surface of the Earth can be seen from the camera. (a) Find an equation that relates the central angle theta to the height h. (b) Find an equation that relates ...
*Friday, February 22, 2008 at 6:31pm by Javier*

**math**

(a)Given the points P(3,5),Q(8,10)and R(8,0),find the equation of a line which is perpendicular to QR and passes through the mid point of QR. (b)The line 2x+3y=2 and 7x-3y=10 intersect at A . Find the equation of the line which passes through A and is perpendicular to the line...
*Wednesday, June 5, 2013 at 11:01pm by JOJO*

**geometry**

Here is an equation for a sphere: (x-18)^2+(y-5)^2+(z+11)^2=36 give the coordinates of two points on the sphere. I know how to find coordinates on a circle using the equation (x-h)^2+(y-k)^2=r^2 but I can't figure out how t do it with a sphere.
*Thursday, March 29, 2012 at 5:04pm by SoccerStar*

**college algebra**

1. for the given slope-inntercept equation of the line with the following properties parallel to the line y=7; containing the (-3,5) 2. write the equation of the circle in standard form. find the center, radius, intercepts. x^2+y^2+16x-18y+145=25 please show work
*Monday, December 3, 2012 at 11:34am by confused-steve please*

**Math**

Start with one formula. 4p - 2q = 16 Get one variable alone on one side of the equation. -2q = 16 - 4p q = 2p - 8 Then substitute the value into the other equation. 5p + 7q = 1 5p + 7(2p - 8)= 1 Solve for p. Once you find p, put that value into the first equation to solve for ...
*Thursday, April 17, 2008 at 6:07pm by PsyDAG*

**statistics**

Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion ( .30 to mean) to find the Z score. Insert into equation and solve. Remember to double to represent each side.
*Tuesday, February 28, 2012 at 11:02pm by PsyDAG*

**algebra**

This is a quadratic equation move the -9y over to the other side y^2+9=-9y y^2+9y+9= 0 then either factor or use the quadratic equation to find the solution.
*Tuesday, August 28, 2007 at 9:36pm by ~christina~*

**Calculus 2**

I am having so many problems with these volume problems, 1. Find the volume of a the solid obtained by rotating the region enclosed by: x = 2y and y^3 = x with y>0 about the x axis 2.Find the volume of cone of height h = 250 and a circular base with radius r = 150 First ...
*Saturday, October 23, 2010 at 1:49am by J*

**Calculus**

For the standard line equation, y=mx+b m is the slope of the line b is the y intercept (where x=0) Take the derivative of the equation. Use that to find the slope of the tangent at (0,8). Once you have the slope and one point (0,8) you can solve for the b.
*Friday, June 12, 2009 at 2:03am by Quidditch*

**math**

Find the dimensions of a rectangle with perimeter 40 with the largest area. (hint: Find an equation for area and one for perimeter, use both to find perimeter in terms of one variable)
*Tuesday, March 20, 2012 at 3:18am by Jordan*

**Math**

(90, 220) and (76, 178) You have two points, so you can write an equation of a straight line in the form or y = mx + b First find the slope: m =(220-178)/(90-76) Once you have the slope. Use it and one of the points to find the equation of the line. To interpret the slope the ...
*Wednesday, March 13, 2013 at 11:53pm by Dr. Jane*

**Pre-Calculus**

I am having trouble with several problems: 1) Find the coordinates of the center, foci, and the vertices, and the equations of the asymptotes of the graph of the equation (x+1)^2/2 - y^2/8 =1 2) Write the standard form of the equation of the circle that is tangent to x= -2 and...
*Saturday, September 27, 2008 at 6:58pm by Lucy*

**Pre-Calculus**

I am having trouble with several problems: 1) Find the coordinates of the center, foci, and the vertices, and the equations of the asymptotes of the graph of the equation (x+1)^2/2 - y^2/8 =1 2) Write the standard form of the equation of the circle that is tangent to x= -2 and...
*Sunday, September 28, 2008 at 2:17pm by Lucy*

**Trigonometry**

Help trig question involving discriminant? a)Find the value of the discriminant. b)Use any method to find the real roots of the equation if they exist. 2x^2+7x=0
*Thursday, November 17, 2011 at 6:52pm by Tomtom*

**Math**

Need to find equation for 1250=1200+4-375. Is this possible or impossible. Need to find how to figure these type of questions. This is 3rd grade homework
*Tuesday, April 24, 2012 at 9:15pm by Justin*

**Calculus **

The equation of motion of a particle is s= 2y^3 - 7t^2 + 4t +1 where s is in meters and t is in seconds a) Find the velocity and acceleration as functions of t. b) Find the acceleration after 1 second.
*Sunday, February 24, 2013 at 5:15pm by Jilian*

**Math**

Find the equation of the curve that joins the following points. Hint: Use common differences. a. The zeros of the function are 3,-1,-5. The y-intercept is 15. Find the function. b. (1,1), (0,1), (2,-5), (-1,-5)
*Wednesday, December 4, 2013 at 6:45pm by Jessy*

**math**

The first thing you should do is try to remove the brackets. You can do this by using distributivity. In symbols, this means the following: a*(b + c) = a*b + a*c As you can see, the first term of the equation is 7*(y+3) So, using distributivity, we find that 7*(y+3) = 7*y + 7*...
*Tuesday, October 13, 2009 at 8:52pm by Christiaan*

**algebra**

also you can first find y in the equation(s), and then find the slopes, and finally multiply the slopes.
*Tuesday, April 15, 2008 at 4:55pm by Jeremy*

**college algebra**

Find f(1) and f(2) Find the slope f(1) - f(2) / 1 - 2 Write your equation Rate of change = slope
*Monday, December 10, 2012 at 9:08pm by Mac*

**algebra 1**

First, put the equation in slope-intercept form. 6x-7y=4 -7y=-6x+4 -y=-6/7x+4/7 y=6/7x-4/7 So the slope of the parallel line will also be 6/7. Now use the point slope formula to find the equation of the line. y-y1=m(x-x1) y-(-2)=6/7(x-5) y+2=6/7(x-5) y+2=6/7x-30/7 y=6/7x-44/7 ...
*Sunday, July 10, 2011 at 8:19pm by Max*

**College Math : Linear Algebra**

Suppose A is a square matrix satisfying the equation A^3 - 2I = 0. Prove that A and (A - I) respectively are invertible. (the hint is to find an explicit equation for A^-1. To prove A is invertible, this is what I did although I don't that it's right: A^3 - 2I = 0 A(A^2 - 2A^-...
*Tuesday, February 9, 2010 at 5:37pm by David*

**Math**

Let x = number of $1 coins and y = number of $2 coins. x = 5y - 8 x - 5y = -8 x + 2y = 160 Multiply first equation by 2 and second by 5. 2x - 10y = -16 5x + 10y = 800 Add the two equations. 7x = 784 x = ? Put value of x in first equation to find y. To check, put both values ...
*Thursday, January 13, 2011 at 8:34pm by PsyDAG*

**Geometry**

Supplementary angles: x + y = 180 From the problem, we can state that: y = (1/4)x Substituting back to the first equation, we have: x + (1/4)x = 180 (5/4)x = 180 x = ? (You can calculate this yourself) As to find the supplementary angle, you can use the result for x by using ...
*Saturday, February 26, 2011 at 6:31pm by agrin04*

**Math (geometry)**

Line l is tangent to circle O at point P(3,4) where the center is located at (0,0). a. Find the radius of the circle. (I got 4) b. Give an equation of the circle. (I got x^2+y^2=16) c. Find the slope of line l. d. Give an equation of line l...
*Wednesday, April 30, 2008 at 7:09pm by Emily*

**statistik**

a, b) Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions related to the Z scores. c) Use same table to find percent (47.5%) between Z score and mean. Insert Z score in above ...
*Wednesday, November 28, 2012 at 9:19am by PsyDAG*

**Algebra**

I am stuck, pleas help, i have the example but I am still not able to figure it out... Find the value of X...5/x+6+2/x^2+7x+6=3/X+1 Find the value of X...2/5=x-2/20 First, get the X terms on one side of the equation and the numbers on the other. 2/5=X-2/20 2/5+2/20 = X Change ...
*Wednesday, May 23, 2007 at 10:38am by Helpless Again*

**Algebra**

Tell whether the graph opens up or down. Find the coordinates of the vertex. Write an equation of the axis of symmetry. Y=3x^2 The graph opens up but I dont get how you would find the coordinates of vertex and how to write the equation of axis of symmetry. Please help!
*Monday, March 11, 2013 at 10:28pm by Emma *

**precalc**

equations one is a point. Equation 3 has no solution. Equation 2 is not in x at all. So what does Linear equation mean? Most agree it is a polynomial equation of degree one. Are any of the above polynomials?
*Monday, September 14, 2009 at 5:17pm by bobpursley*

**Statistics**

Don't have a TI-84 calculator, but.... Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.80) related to a Z score. Insert that value into the above equation to find ...
*Tuesday, February 25, 2014 at 7:13pm by PsyDAG*

**maths**

Given that a and b are the roots of the quadratic equation 2x^2 - 4x +3 = 0, find the quadratic equation in x with roots a^2-(1/b) and b^2-(1/a).
*Thursday, August 15, 2013 at 4:09am by Jayden Haddy*

**Math**

I will assume that your equation is such that the vertex is on the y-axis Then your equation will be y = ax^2 + 15 , (the h of your equation will be zero) then (6,8) must lie on the equation 8 = a(6)^2 + 15 a = -7/36 equation: y = (-7/36)x^2 + 15
*Sunday, August 22, 2010 at 8:28pm by Anonymous*

**math(algebra 1)**

1)3x + y = 0, x - y = 4 Pick and equation, and solve for either x or y x - y = 4 x = 4 + y Substitute, x = 4 + y, for x, in the other equation and solve for y x = 4 + y 3x + y = 0 3(4 + y) + y = 0 12 + 3y + y = 0 12 + 4y = 0 4y = -12 y = -3 substitute y = -3 in either equation...
*Tuesday, January 18, 2011 at 10:53pm by helper*

**algebra**

Take the first equation and solve for x: 2x-9y=2 x=(2+9y)/2 Substitute this value of x into the second equation and solve for y. Substitute the solution for y into the first equation to find the solution of x. BACK SUBSTITUTE x and y into both equations to make sure the answer...
*Wednesday, September 2, 2009 at 7:40pm by MathMate*

**Chemistry**

For this sort of problem always start with a balanced equation, Mg + HCl -> H2 + MgCl2 which you need to balance. molar mass for Mg is 24.3 g mole^-1 number of moles (M) of Mg is M= 0.260 g / 24.3 g mole^-1 Then use the equation to find the number of moles of H2. Under ...
*Wednesday, February 23, 2011 at 9:26am by Dr Russ*

**statistics**

a. http://en.wikipedia.org/wiki/Standard_deviation b. 95% = mean 1.96 SD c. Z = (score-mean)/SD d. Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion from the Z score, using equation above. e. Use ...
*Sunday, June 3, 2012 at 10:39am by PsyDAG*

**math**

Mo -- first, don't be so fast in telling teachers they are wrong. Your question is 2/3 of what number is 15. I used the equation above to find the answer. X = the number you need to find.
*Wednesday, December 3, 2008 at 9:07pm by Ms. Sue*

**Calculus**

Find dR/dt, set equal to zero, find time. PUt that in the original equation for altitude. R'=3t^2-8t=0 t(3t-8)=0 t=0, t= 8/3 sec Rmax=R(8/3)= you do it.
*Monday, January 10, 2011 at 9:16pm by bobpursley*

**calculus**

Given the function f(x) = 3x - 9 a. Find the rate of change between the two stated values for x: 7 to 8 b. Find the equation of a secant line containing the given points: (7, f(7)) and (8, f(8))
*Thursday, March 15, 2012 at 12:09pm by bobbie*

**college algebra**

given the function f(x)= x^3+3x find the rate of chnge between the two values x:1 to 2 find the equation of a secant line containing the given points (1,f(1) and (2,f(2))
*Friday, November 2, 2012 at 5:07pm by zachary*

**Linear Algebra**

Last number from the sample test! A plane P passes by the coordinates: A(1,0,-7); B(-2,-1,0); C(0,0,-3) Using the equation of the line D: x= 7+12t, y= -1-6t, z= 2-2t, Find the equation of a line that's entirely part of the plane P and that is perpendicular to the line D at ...
*Monday, September 10, 2012 at 3:02pm by Robert*

**Calculus**

Find the equation of the tangent line to the curve (piriform) y^2=x^3(4−x) at the point (2,16−−). a. Find dy/dx at x=2. dy/dx= b. Write the equation of the tangent line to the curve.
*Tuesday, June 25, 2013 at 5:25pm by Tyler*

**Q2**

Question2 In (dy/dx) + yP(x) = y^n Q(x), if n = 1 the equation would be reduced to a A Bernoulli Equation B Exact equation C Variable Separable When n=1, the equation reduces to: y' + yP(x) = yQ(x) y' = y(P(x)+Q(x)) y'/y = P(x) + Q(x) Does that look familiar to you?
*Monday, December 14, 2009 at 9:42am by MathMate*

**Math**

Multiply the first equation by 2. Add that equation to the second equation. Solve this new equation for x. Now substitute your value for x into either one of the original equations and solve for y.
*Wednesday, April 17, 2013 at 7:30pm by rbowh*

**college algebra**

1. find the equation of the line with the given properties. Express the equation in general form or slope-intercept form. perpendicular to the line -3x_y= -27; contains the point (9, -1) the equation of the line is ? 2. solve the polynomial inequality and then graph the ...
*Saturday, December 1, 2012 at 9:22am by confused--two questions please help*

**physics**

for a free throw in basketball,find an equation for the final angle to go into the hoop in terms of y and x to the hoop and the initial angle. I can't seem to get an equation with only those variables. I always get stuck with others like time and velocity. how do i do this?
*Sunday, February 3, 2008 at 6:14pm by Mischa*

**5th grade math**

How do you do letter equations? "Each letter in the equation below represents a different digit from the set (1, 3, 4, 7, 8). find the value of each letter to make the equation true. Each letter must represent only one number throughout the entire problem." A D D + M A D...
*Thursday, January 14, 2010 at 5:45pm by Samantha*

**math**

can someone show me how to set up this equation? the following figure which consist of seven equal squares has an area of 63 square units. find its perimeter. I have been racken my brain trying to set this equation up.
*Thursday, October 21, 2010 at 5:55pm by Kev H*

**math 20 system of equations**

I have been solving system of equations graphically and using addition and subtraction and now I'm being asked: Give any linear system of two equation that has a solution of (3,5). Does it have to be in y=mx+b form and if so how do I do it? I've been trying to find an example ...
*Tuesday, October 12, 2010 at 10:43pm by Sandi*

**Algebra (grade 9)**

for #1 and #2 first find the slope, that gives you the m. Now pick one of the given points and sub those values into y = mx + b Solve for b and rewrite the equation. I am sure that your teacher and/or your textbook has given you several examples of this type of fundamental ...
*Sunday, October 18, 2009 at 10:01am by Reiny*

**Managerial Econ**

given the demand function Q=9-.5P how can you figure out the optimal price if the objective of the firm is to mazimize revenues?? PLEASE HELP more a calclus question with an economics application. First, set the equation for total revenue TR. TR is simply price times quantity...
*Wednesday, September 20, 2006 at 10:34am by Erin*

**Algebra**

1. In this problem, we will analyze the profit found for sales of a certain product. A demand equation (sometimes called a demand curve) shows how much money people would pay for a product depending on how much of that product is available on the open market. Often, the demand...
*Thursday, April 29, 2010 at 10:16am by Anonymous*

**Algebra**

. In this problem, we will analyze the profit found for sales of a certain product. A demand equation (sometimes called a demand curve) shows how much money people would pay for a product depending on how much of that product is available on the open market. Often, the demand ...
*Thursday, April 29, 2010 at 3:20pm by Anonymous*

**math**

1.graph equation y=4/5x 2.graph linear equation y=-1 3.find the slope of line -2x - 3y = 5 a. slope is b. slope is undefined?
*Tuesday, October 15, 2013 at 1:06pm by bridget*

**adult education**

Looks like a classical algebra problem to me. 280lbs=S+C weight equation 280*.09=.14S+.07C protein equation How to solve? I would multiply the top equation by .07, then subtract one equation from the other.
*Saturday, October 23, 2010 at 3:52pm by bobpursley*

**Algebra**

that's because you are really given only one equation if you multiply the first equation by -3 you get your second equation so by subtracting them you get 0 = 0 if that happens, there will be an infinite number of solutions, namely any point that satisfies the first equation.
*Saturday, April 25, 2009 at 11:50pm by Reiny*

**calculus**

Consider a gun fired from a tower 96ft above the ground. The angle of elevation of the gun is 60 degrees, and its muzzle velocity is 1600 ft/sec (also gravity in this equation is 32 ft/sec^2). a)When does the bullet hit the ground? b)Write a parametric equation that models the...
*Saturday, August 13, 2011 at 7:13pm by jessica*

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