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August 2, 2014

August 2, 2014

**Recent Homework Questions About Calculus**

Post a New Question | Current Questions

**Calculus**

Gravel is being dumped from a conveyor belt at a rate of 10 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal. How fast is the height of the pile increasing when the pile is 16 feet high? Recall that ...
*Friday, July 5, 2013 at 6:48pm*

**algebra 2**

Consider the exam data below. Algebra score: 20 35 13 29 40 23 Calculus score: 41 69 34 72 86 58 Use your calculator to find the regression line for this data, and graph it on your scatterplot. b. Interpret the slope and intercepts of this line in the context of the problem. c...
*Friday, July 5, 2013 at 4:27pm*

**calculus**

The demand for your hand-made skateboards, in weekly sales, is q=-5p+600 if the selling price is $p. You are prepared to supply q=5p-400 per week at the price $p. What price should you sell your skateboards for so that there is neither a shortage nor a surplus? Someone please ...
*Thursday, July 4, 2013 at 11:07pm*

**Math Calculus**

f(x) = (x^3+5x^2-28x-32)/(x^3-18x^2+105x-196) which can be written as f(x) = [(x+1)(x-4)(x+8)]/[(x-7)^2(x-4) The domain of the function f(x), in interval notation from left to right, is ____ U ____ U ______. The root(s) of f(x), in increasing order, is/are: _____, ____. f(x) ...
*Thursday, July 4, 2013 at 8:56pm*

**Calculus**

How would I use the chain rule here for x^2+y^2=z^2 but still have my answer in equation form?
*Wednesday, July 3, 2013 at 9:23am*

**Calculus**

Show that both functions y1=e^(-2x) and y2=xe^(-2x) are solutions to the differential equation y^''+4y^'+4y=0
*Tuesday, July 2, 2013 at 11:34pm*

**Calculus**

sand is falling into a conical pile so that the radius of the base of the pile is always equal to one half its altitude. of the sand is falling at the rate of 10 cubic feet per minute, how fast is the altitude of the pile increasing when the pile is 5 feet deep?
*Tuesday, July 2, 2013 at 10:09pm*

**Calculus-HELP!!!!**

Show that the function y=c_1 e^x cos(x)+ c_2 e^x sin(x) satisfies the differential equation y''-2y'+2y=0 for any values of c1 and c2, then find the values for those constants that solve the initial value problem y(0)= 1, y'(0)= -1
*Tuesday, July 2, 2013 at 9:08pm*

**Calculus**

A television camera is positioned 2500 ft from the base of a rocket launching pad. The angle of elevation of the camera has to change at the correct rate in order to keep the rocket in sight. Also the mechanism for focusing the camera has to take into account the increasing ...
*Monday, July 1, 2013 at 7:11pm*

**Calculus Help**

I have looked high and low to figure out how to start this question. I have no clue! Any help would be great!! Rainbows are formed when light strikes raindrops and is reflected and refracted. The Law of Refraction states that (sin alpha)/(sin beta) = k, where k equals 1.33 (...
*Sunday, June 30, 2013 at 8:40pm*

**Calculus**

Two cars start moving from the same point. One travels south at 60 mph and the other travels west at 25 mph. At what rate is the distance between the cars increasing 2 hours later? Let x = the distance covered by the south traveling car. Let y = the distance covered by the ...
*Friday, June 28, 2013 at 10:18pm*

**Calculus**

A television camera is positioned 2500 ft from the base of a rocket launching pad. The angle of elevation of the camera has to change at the correct rate in order to keep the rocket in sight. Also the mechanism for focusing the camera has to take into account the increasing ...
*Friday, June 28, 2013 at 10:14pm*

**Calculus (help steve)**

f(x)=−8x^3+6ax^2−3bx+4 has a local minimum at x=1 and a local maximum at x=3. If a and b are the local minimum and maximum, respectively, what is the absolute value of a+b?
*Friday, June 28, 2013 at 4:03pm*

**Math (Calculus)**

A(1,0) is a point on the parabola y=2x(x−1). From point A, point P is moving along the curve towards the origin O(0,0). As P → O, sec^2∠APO → N, where N is a positive integer. What is the value of N?
*Thursday, June 27, 2013 at 12:23pm*

**Calculus**

Let y=e^(x/9). a) Find the differential dy. dy = b) Evaluate dy if x=0 and dx=−0.03. dy =
*Wednesday, June 26, 2013 at 10:54pm*

**Theorem Calculus**

A thin triangle has vertices (0,0), (1,0), and (0,2). Let the density function at any given point on the triangle be represented by ρ(x,y)=1+3x+y. The mass of the triangle can be represented by p/q, where p and q are coprime positive integers. What is the value of p+q?
*Wednesday, June 26, 2013 at 9:57am*

**Please Help with calculus**

How to evaluate x=0 and dx=-.03? I got(1/9)e^(x/9)dx as dy of e^(x/9)and I don't know how I should plug them in.
*Wednesday, June 26, 2013 at 9:37am*

**differential calculus**

y = sin x find the derivative...
*Wednesday, June 26, 2013 at 8:34am*

**Calculus**

Let y=e^(x/9). a) Find the differential dy. dy = b) Evaluate dy if x=0 and dx=−0.03. dy =
*Wednesday, June 26, 2013 at 8:21am*

**Calculus**

Find the linear approximation L(x) of ln(x) at the point a = 12.
*Tuesday, June 25, 2013 at 7:12pm*

**Calculus**

Find the equation of the tangent line to the curve (piriform) y^2=x^3(4−x) at the point (2,16−−ã). 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*

**Calculus**

Find dy/dx by implicit differentiation: cos(x−y)=−4xe^x
*Tuesday, June 25, 2013 at 10:15am*

**Calculus**

Find dy/dx by implicit differentiation for the following 2x^2y+3y=-1
*Tuesday, June 25, 2013 at 10:10am*

**Calculus please help??**

The motion of a spring that is subject to dampening (such as a car's shock absorber)is often modeled by the product of an exponential function and a sine or cosine function. Suppose the equation of motion for a point on such a spring is s(t)=3∗e−2tsin(3ðt) ...
*Monday, June 24, 2013 at 10:26am*

**Calculus 2**

(x^3+2x^2-15x+1)/(x^2+2x-15) from 0 to 7
*Sunday, June 23, 2013 at 9:27pm*

**Calculus 2**

A tank is full of water. Find the work W required to pump the water out of the spout. (Use 9.8 for g and 3.14 for π. If you enter your answer in scientific notation, round the decimal value to two decimal places. Use equivalent rounding if you do not enter your answer in ...
*Saturday, June 22, 2013 at 12:22am*

**Calculus 2**

Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about x = 4. y = 3 x^4 y = 0 x = 2
*Friday, June 21, 2013 at 9:59pm*

**math-calculus 2**

Consider the given curves to do the following. 64 y = x^3, y = 0, x = 4 Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about y = 1.
*Friday, June 21, 2013 at 5:23pm*

**calculus**

1.Ruth has 240 feet of fencing available to enclose a rectangular field. Express the area A of the rectangular field as a function x, where x is the length of the field. 2. For what value of x is the area largest? 3. What is the maximum area?
*Thursday, June 20, 2013 at 10:03pm*

**Differential Calculus (first part)**

if g(x) = cos2x find g(-x)
*Thursday, June 20, 2013 at 9:37pm*

**Calculus**

Find the linear approximation L(x) of ln(x)at the point a = 12.
*Thursday, June 20, 2013 at 9:17pm*

**Calculus**

The interval [0,4] is partitioned into n equal subintervals, and a number x_i is arbitrarily chosen in the i^th subinterval for each i. Then.... lim_(n → ∞) ∑_(i = 1 → n)[2x_i+8)/n]=???
*Thursday, June 20, 2013 at 7:03pm*

**Calculus (Arc Length)**

Consider the helix parametrized with the vector equation r(t)=cos t i+ sin t j + t k. The length L of the helix between the points (1,0,0) and (1,0,6π) is equal to aπ. What is the value of a^2?
*Thursday, June 20, 2013 at 10:16am*

**Calculus**

∫10 to 21,f(x)dx-∫10 to 14, f(x)dx=∫a to b,f(x). where a=?,b=?
*Thursday, June 20, 2013 at 8:55am*

**Calculus**

The velocity function is v(t)=t^2-5t+6 for a particle moving along a line. Find the displacement of the particle during the time interval [-3,6].
*Thursday, June 20, 2013 at 8:47am*

**diffirential calculus**

express the surface of a right circular cylinder a function of its volume assuming the height is constant
*Thursday, June 20, 2013 at 5:15am*

**Calculus**

The radius of a circular disk is given as 51 cm with a maximum error of 0.04 cm. Use differentials to estimate the maximum error and percent error in the calculated area of the disk.
*Wednesday, June 19, 2013 at 3:56pm*

**Calculus**

Find the Taylor Polynomial of order 1 for the function f(x)=arctan(x/5) in powers of (x-5). Also find the remainder R1(x) as a function of x and c.
*Wednesday, June 19, 2013 at 11:29am*

**Calculus**

By recognizing each series below as a Taylor series evaluated at a particular value of x, find the sum of each convergent series. A) 1+5 + (5^2)/(2!)+(5^3)/(3!)+(5^4)/(4!)+...+ (5^k)/(k!)+...= B) 1-(2^2)/(2!)+(2^4)/(4!)-(2^6)/(6!)+...+((-1)^(k)2^(2k))/((2k)!) +...=
*Tuesday, June 18, 2013 at 10:24pm*

**Calculus**

Find the 3rd order for the taylor polynomial in powers of x for the function f(x)=sinh2x and find the remainder as a function of x and c. P3(x)=? R3(x)=? What's the kth term expression?
*Tuesday, June 18, 2013 at 8:46pm*

**Calculus**

Find the general expression of the kth nonzero term in the taylor series f(x) = 3/(1+x), for k= 0, 1, 2,...
*Tuesday, June 18, 2013 at 8:44pm*

**Calculus**

The motion of a spring that is subject to dampening (such as a car's shock absorber)is often modeled by the product of an exponential function and a sine or cosine function. Suppose the equation of motion for a point on such a spring is s(t)=3∗e^(−2t)sin(3ð...
*Tuesday, June 18, 2013 at 7:04pm*

**Calculus**

The management of the UNICO department store has decided to enclose a 917 ft2 area outside the building for displaying potted plants and flowers. One side will be formed by the external wall of the store, two sides will be constructed of pine boards, and the fourth side will ...
*Tuesday, June 18, 2013 at 4:35pm*

**Calculus**

Find the absolute maximum value and the absolute minimum value, if any, of the function. (If an answer does not exist, enter DNE.) f(x) = −x2 + 2x + 3 on [3, 6] maximum minimum
*Tuesday, June 18, 2013 at 4:30pm*

**Calculus**

Find the relative extrema, if any, of the function. Use the second derivative test, if applicable. (If an answer does not exist, enter DNE.) f(t) = 7 t + 3/t relative maximum (x, y) = relative minimum (x, y) =
*Tuesday, June 18, 2013 at 4:28pm*

**Calculus**

Find the outside and inside functions of the following to find their derivatives: 1) sqrt(2x+9) 2) cos(cos(x)) 3) tan(x) I already know how to find their derivatives I'm just not exactly sure what parts of the chain rule equation would be considered the outside and inside.
*Tuesday, June 18, 2013 at 2:41pm*

**Calculus**

A fence 3 feet tall runs parallel to a tall building at a distance of 3 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building. Answer the following: The distance along the ladder to the top ...
*Tuesday, June 18, 2013 at 2:13pm*

**Calculus**

Find the point on the line 4x+3y-4=0 which is closest to the point (5,2)
*Tuesday, June 18, 2013 at 2:08pm*

**Calculus**

For what values of x with 0¡Üx¡Ü2¦Ð does the graph of f(x)=x+4sin(x) have a horizontal tangent?
*Tuesday, June 18, 2013 at 10:39am*

**Calculus**

Find the equation of the tangent line to the curve y=2tan(x) at the point (pi/4,2).
*Tuesday, June 18, 2013 at 10:38am*

**Calculus**

An arithmetic progression has terms a8 =23 and a20 =83 . What is the value of the term a12
*Tuesday, June 18, 2013 at 10:13am*

**Calculus**

Find the absolute maximum value and the absolute minimum value, if any, of the function. (If an answer does not exist, enter DNE.) f(x) = x^3 + 3 x^2 - 1 on [-3, 1]
*Monday, June 17, 2013 at 8:21pm*

**Calculus**

The quantity demanded each month of the Walter Serkin recording of Beethoven's Moonlight Sonata, manufactured by Phonola Record Industries, is related to the price/compact disc. The equation p = -0.00048 x + 7\ \ \ \ \(0<=x<=12,000\) where p denotes the unit price in...
*Monday, June 17, 2013 at 8:21pm*

**Calculus**

The weekly demand for the Pulsar 25-in. color console television is given by the demand equation p = -0.03 x + 571\ \ \ \ \(0<=x<=12,000\) where p denotes the wholesale unit price in dollars and x denotes the quantity demanded. The weekly total cost function associated ...
*Monday, June 17, 2013 at 8:21pm*

**Calculus**

Lynbrook West, an apartment complex, has 100 two-bedroom units. The monthly profit (in dollars) realized from renting out x apartments is given by the following function. P(x) = -10 x^2 + 1780 x - 54,000 To maximize the monthly rental profit, how many units should be rented ...
*Monday, June 17, 2013 at 8:20pm*

**Calculus**

The quantity demanded each month of the Sicard wristwatch is related to the unit price given by the equation below, where p is measured in dollars and x is measured in units of a thousand. To yield a maximum revenue, how many watches must be sold? (Round your answer to the ...
*Monday, June 17, 2013 at 7:59pm*

**Calculus**

The management of the UNICO department store has decided to enclose a 917 ft2 area outside the building for displaying potted plants and flowers. One side will be formed by the external wall of the store, two sides will be constructed of pine boards, and the fourth side will ...
*Monday, June 17, 2013 at 7:56pm*

**Calculus**

By cutting away identical squares from each corner of a rectangular piece of cardboard and folding up the resulting flaps, an open box may be made. If the cardboard is 16 in. long and 10 in. wide, find the dimensions of the box that will yield the maximum volume. (Round your ...
*Monday, June 17, 2013 at 7:56pm*

**Calculus**

A rectangular box is to have a square base and a volume of 20 ft3. If the material for the base costs 37¢/square foot, the material for the sides costs 10¢/square foot, and the material for the top costs 13¢/square foot, determine the dimensions of the box that ...
*Monday, June 17, 2013 at 7:55pm*

**Calculus**

Sketch a graph of the parabola y=x^2+3. On the same graph, plot the point (0,−6). Note there are two tangent lines of y=x2+3 that pass through the point (0,−6). The tangent line of the parabola y=x^2+3 at the point (a,a^2+3) passes through the point (0,−6) ...
*Monday, June 17, 2013 at 3:45pm*

**Calculus**

Find the values of a ,b, and c in the quadratic function p(x)=ax^2+bx+c such that p(2)=6, p'2)=2, and p''(2)=3. a = b = c =
*Monday, June 17, 2013 at 3:44pm*

**calculus**

find equation of tangent line for x^(1/3) + y^(1/2)=2 at point (1,1)
*Sunday, June 16, 2013 at 7:32pm*

**calculus**

find a point on the curve x^3 + y^3 =2xy other than the origin at which tangent line is horizontal
*Sunday, June 16, 2013 at 7:31pm*

**calculus**

estimate ln(e^2+0.1)-ln(e^2)
*Sunday, June 16, 2013 at 6:51pm*

**calculus**

estimate change in f using the linear approximation and compute both error and the % error f(x)= (3+x)^1/2 a=1 change in x=0.5
*Sunday, June 16, 2013 at 6:39pm*

**calculus**

estimate change in f using the linear approximation and compute both error and the % error f(x)= (3+x)^1/2 a=1 change in x=0.5
*Sunday, June 16, 2013 at 4:54pm*

**pre calculus**

Hi, I am having a problem trying to find and understanding how to find the extreme values. I have a problem which I can't do. Will someone please explain for me how to do it. I would like to be able to do other similar problems. This is the problem I am stuck on: f(x)= x^...
*Sunday, June 16, 2013 at 1:32pm*

**pre calculus**

Hi, I am having a problem trying to find and understanding how to find the extreme values. I have a problem which I can't do. Will someone please explain for me how to do it. I would like to be able to do other similar problems. This is the problem I am stuck on: f(x)= x^...
*Sunday, June 16, 2013 at 1:32pm*

**calculus**

which number should be subtracted from each of the three numbers 5, 15, and 50 so that the resulting three numbers form a geometric progression?
*Saturday, June 15, 2013 at 1:45am*

**Calculus**

Find the values of a , b , and c in the quadratic function p(x)=ax2+bx+c such that p(2)=6, p'(2)=2, p"(2)=3
*Friday, June 14, 2013 at 7:08pm*

**Calculus**

Find the values of a , b , and c in the quadratic function p(x)=ax^2+bx+c such that p(2)=6, pŒ(2)=2, and pŒŒ(2)=3.
*Friday, June 14, 2013 at 5:56pm*

**Calculus**

Find an equation of the tangent line to the graph of the function f defined by the following equation at the indicated point. (x - y - 1)3 = x; (1, -1) y =
*Thursday, June 13, 2013 at 10:06pm*

**Calculus**

Follow the steps below for the given function. (Do not use mixed numbers in your answers.) 2x + 5y = 1 Solve the equation for y. y = Differentiate this equation with respect to x. y ' = Complete the steps below to implicitly take the derivative of the original equation. 2x...
*Thursday, June 13, 2013 at 10:03pm*

**Calculus**

Let f be the function defined as follows. $ y = f(x) = {\color{red}5} x^2 -{\color{red}9} x +{\color{red}10} $ (a) Find the differential of f. dy = (b) Use your result from part (a) to find the approximate change in y if x changes from 2 to 1.97. (Round your answer to two ...
*Thursday, June 13, 2013 at 8:53pm*

**Calculus**

Let f be the function defined as follows. $ y = f(x) = \sqrt{{\color{red}3} x +{\color{red}10}}$ (a) Find the differential of f. dy = (b) Use your result from part (a) to find the approximate change in y if x changes from 4 to 4.1 (Round your answer to three decimal places.). ...
*Thursday, June 13, 2013 at 8:53pm*

**Calculus**

The volume of a spherical cancerous tumor is given by the following equation. V(r) = (4/3)pi r^3 If the radius of a tumor is estimated at 1.4 cm, with a maximum error in measurement of 0.003 cm, determine the error that might occur when the volume of the tumor is calculated. cm3
*Thursday, June 13, 2013 at 8:52pm*

**Calculus**

A car leaves an intersection traveling west. Its position 5 sec later is 22 ft from the intersection. At the same time, another car leaves the same intersection heading north so that its position 5 sec later is 27 ft from the intersection. If the speed of the cars at that ...
*Thursday, June 13, 2013 at 8:51pm*

**Calculus**

The total worldwide box-office receipts for a long-running movie are approximated by the following function where T(x) is measured in millions of dollars and x is the number of years since the movie's release. T(x) = (120x^2)/(x^2 + 4) How fast are the total receipts ...
*Thursday, June 13, 2013 at 8:16pm*

**Calculus**

Suppose f and g are functions that are differentiable at x = 1 and that f(1) = 2, f '(1) = -1, g(1) = -2, and g '(1) = 3. Find the value of h '(1). h(x) = (x2 + 11) g(x) h '(1) =
*Thursday, June 13, 2013 at 8:16pm*

**Calculus**

The relationship between the amount of money x that Cannon Precision Instruments spends on advertising and the company's total sales S(x) is given by the following function where x is measured in thousands of dollars. S(x) = -0.002x3 + 0.9x2 + 4x + 500 (0 x 200) Find the ...
*Thursday, June 13, 2013 at 8:15pm*

**Calculus**

The demand function for the Luminar desk lamp is given by the following function where x is the quantity demanded in thousands and p is the unit price in dollars. p = f(x) = -0.1x2 - 0.3x + 39 (a) Find f '(x). f '(x) = (b) What is the rate of change of the unit price ...
*Thursday, June 13, 2013 at 8:14pm*

**Calculus**

Find the points on the graph of f where the tangent line is horizontal. f(x) = x3 - 15x2 (x, y) = ( , ) (smaller x-value) (x, y) = ( , ) (larger x-value)
*Thursday, June 13, 2013 at 8:14pm*

**Calculus**

Find the slope and the equation of the tangent line to the graph of the function f at the specified point. f(x) = -8/5 x^2 + 7 x + 7;(-1, -8/5) slope tangent line y =
*Thursday, June 13, 2013 at 8:12pm*

**Calculus**

Let f(x) = 4x5/4 + 10x3/2 + 9x. Find the following. (a) f '(0) = (b) f '(16) =
*Thursday, June 13, 2013 at 8:11pm*

**Calculus**

Given that f(x)=x^8h(x) h(−1)=5 hŒ(−1)=8 Calculate fŒ(−1).
*Thursday, June 13, 2013 at 9:52am*

**Calculus**

The equation of motion of a particle is s=4t^3−7t, where s is in meters and t is in seconds. Find a) the velocity of the particle as a function of t : v(t)= b) the acceleration of the particle as a function of t : a(t)= c) the velocity after 5 seconds d) the acceleration...
*Thursday, June 13, 2013 at 8:42am*

**Calculus**

Find an equation for the tangent line of the function f(x)=6+10xe^x at the point (0,6).
*Thursday, June 13, 2013 at 6:40am*

**Calculus**

Consider the vector field: F(x,y)=2xyi+x^(2)j Integrate F over a path starting at (0,0) and ending at (2,2).
*Wednesday, June 12, 2013 at 8:56pm*

**Calculus**

Let f(x,y)=sqrt(1-x^2) and R be the triangular region with corners (0,0), (1,0), and (1,1). Evaluate the double integral(R) f(x,y)dA.
*Wednesday, June 12, 2013 at 8:53pm*

**Calculus**

Find an equation for the tangent line of the function y=x+(4/x) at the point (2, 4). The equation of the tangent line is . You may enter the equation in any form.
*Wednesday, June 12, 2013 at 6:11pm*

**Calculus**

Given that f(x)=x^8h(x): h(−1)=5 hŒ(−1)=8 Calculate fŒ(−1)?
*Wednesday, June 12, 2013 at 5:37pm*

**Calculus**

A rectangular box is to have a square base and a volume of 20 ft3. The material for the base costs 42¢/ft2, the material for the sides costs 10¢/ft2, and the material for the top costs 26¢/ft2. Letting x denote the length of one side of the base, find a function...
*Tuesday, June 11, 2013 at 3:32pm*

**calculus**

solve for the second derivative and set to zero f"(x) = ((x^2-4)*sin(2x)- [(2x)(1+cos^2(x))]/ ((1+cos^2(x))^2) i dont know how to set it to zero and solve i get this: (x^2-4)(sin(2x))= (2x)(1+cos^2(x)) thanks for help i did not get a clear response earlier so i am ...
*Tuesday, June 11, 2013 at 9:02am*

**calculus**

solve for the second derivative and set to zero f"(x) = ((x^2-4)*sin(2x)- [(2x)(1+cos^2(x))]/ ((1+cos^2(x))^2) i dont know how to set it to zero and solve i get this: (x^2-4)(sin(2x))= (2x)(1+cos^2(x)) thanks for help
*Monday, June 10, 2013 at 11:36pm*

**Calculus Grade 12**

Without solving , determine the points of intersection of the line r= (5,-9,3) +k (1,-12,2] and the plane [x,y,z]= (4,-15,-8) + s[1,-3,1] + t[2,3,1], if any exist.
*Monday, June 10, 2013 at 5:18pm*

**Calculus grade 12 lines and planes**

Find the value of k so that the line [x,y,z] = [2,-2,0]+ t[2,k,-3] is parallel to the plane kx +2y - 4z= 12
*Monday, June 10, 2013 at 5:12pm*

**Calculus Grade 12**

Determine the value of k such that the points (4,-2,6), B(0,1,0) and C(1,0,-5) and D (1,k,-2) lie on the same plane.
*Monday, June 10, 2013 at 3:36pm*

**Calculus Grade 12**

Find the equation of the plane that passes through the point (3,7,-1) and is perpendicular to the line of intersection of the planes x-y-2z+3=0 and 3x-2y+z+5=0
*Monday, June 10, 2013 at 3:32pm*

**calculus**

simplify aab-3/Ba^2b-2
*Sunday, June 9, 2013 at 11:59pm*

**Pre-Calculus**

can someone help me with figuring out my math and explaining it to me. or How to use the calculator with the problems ?
*Sunday, June 9, 2013 at 8:48pm*

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