Tuesday
May 21, 2013

# Homework Help: Math: Calculus

calculus
intergrate 2x-14/4x^2-2x-3
Wednesday, December 19, 2012 at 12:18pm

Calculus
Let f be a twice-differentiable function defined on the interval -1.2 less than or equal to x less than or equal to 3.2 with f(1)=2. The graph of f', the derivative of f, is shown on the right. The graph of f' crosses the x-axis at x=-1 and x=3 and has a horizontal ...
Wednesday, December 19, 2012 at 11:52am

Calculus c
Let f be a twice-differentiable function defined on the interval -1.2 less than or equal to x less than or equal to 3.2 with f(1)=2. The graph of f', the derivative of f, is shown on the right. The graph of f' crosses the x-axis at x=-1 and x=3 and has a horizontal ...
Wednesday, December 19, 2012 at 11:29am

Calculus
A particle moves along the x-axis with the velocity given by v(t)=3t/(1+t^2) for t >or equal to 0. When t=0, the particle is at the point (4,0). 1. Determine the maximum velocity for the particle. Justify your answer. 2. Determine the position of the particle at any time t...
Wednesday, December 19, 2012 at 10:30am

calculus
given the following function find, a. zeros and the multiplicity of each b. number of turning points c. end behavior f(x)=(x-1)(x-5) a. x=1 and x=5--is this correct? b. number of turning points I had f(x)-0 BUT my teacher said this-- Note that the equation has a degree of 2. f...
Tuesday, December 18, 2012 at 9:40pm

Given the following polynomial find, a. zeros and the multiplicity of each b. number of turning points c. end behavior f(x)=(x-1)(x-5) a. the multiplicity of (x-1)(x-5) x=1 and x=5----is this correct b. number of turning points I had f(x)-0 at turning points BUT my teacher ...
Tuesday, December 18, 2012 at 6:44pm

calculus
Determine the quadratic function f, whose graph is given. **The graph given is (0,-2) and (3,-11) The vertex is (3,11) and the y-intercept is -2 So, f(x)= **Please help me understand how to do this question. Could you please show work?**
Tuesday, December 18, 2012 at 4:50pm

calculus
can someone help me to understand how or what the points would be for me to graph this line containing the point p and having slope m. P=(3,4) slope undefined
Tuesday, December 18, 2012 at 4:41pm

calculus
I have two questions, please help. 1. Uss completing the square to describe the graph of the following function. Support your answers graphically. f(x)= -2x^2+4x+7 please show work. 2. Can someone help me to graph this function? f(x)=x^2-6x+5 Then find the a. vertex b. axis of...
Tuesday, December 18, 2012 at 4:37pm

calculus
answer the following for the given quadratic function f(x)=x^2-2x+1 a. Does the graph of f open up or down? b. What is the vertex of (h,k) of f? c. What is the axis of symmetry? D. What is the intercepts? E. What is the domain? F. What is the range? G. On what interval is f ...
Tuesday, December 18, 2012 at 4:31pm

Graph the function using transformations show your work and state. A. the domain b. the range c. the asymptotes f(x)=4-1/(x+6)^2
Tuesday, December 18, 2012 at 3:56pm

calculus
1.Find the following for the function f(x)=(x+6)^2(x-2)^2 a. what are the x and y-intercepts? B. Does the graph cross or touch the x-axis? c. Does the graph cross or touch the x-axis at the larger x-intercept? 2. Which of the following best describes how the graph of f can be ...
Tuesday, December 18, 2012 at 3:52pm

calculus
the graph of y= -1/4 over x-2 can be obtained from the graph y|x| by which transformations? a. 5 units to right b. 2 units to right c. 5 units to left d. 2 units to left by what factor is the graphed streched or shrunk vertically and how is it reflected. a. shrunk verticallyby...
Tuesday, December 18, 2012 at 3:40pm

calculus
graph the function using transformation g(x)= -2|x|-3 *Can someone help me to finding out what the points would be that I would graph*
Tuesday, December 18, 2012 at 3:25pm

calculus
I have two questions, please help. 1. Determine the quadratic function f whose vertex is (2,-1) and passes through (1,1). f(x)=? type in form f(x)=ax^2+bx+c **pleasae show work** 2. Describe for the graph of g(x)=3square root x+2 can be obtained from the graph of f(x)=3square ...
Tuesday, December 18, 2012 at 3:15pm

calculus
I have two questions, please help. 1. Determine the quadratic function f whose vertex is (2,-1) and passes through (1,1). f(x)=? type in form f(x)=ax^2+bx+c **pleasae show work** 2. Describe for the graph of g(x)=3square root x+2 can be obtained from the graph of f(x)=3square ...
Tuesday, December 18, 2012 at 3:14pm

calculus
Iamhaving a really hard time trying to understand this question. Can someone please show me how to work this question. Give the following polynomial, find a. the zeros and the multiplicity of each b. where the graph crosses or touches the x-axis c. number of turning points d. ...
Tuesday, December 18, 2012 at 11:55am

calculus
find derivative y= (3x^5-6x^3)/7secx
Tuesday, December 18, 2012 at 8:04am

Math Calculus
The number of portable CD players you are prepared to supply to a retail outlet every week is given by the formula: q = 0.1p2 + 2p where p is the price it offers you. The retail outlet is currently offering you \$50 per CD player. If the price it offers decreases at a rate of \$...
Monday, December 17, 2012 at 10:41pm

math-calculus
A spherical party balloon is being inflated with helium pumped in at a rate of 12 cubic feet per minute. How fast is the radius growing at the instant when the radius has reached 1 ft?
Monday, December 17, 2012 at 9:32pm

calculus
it says lim as x>-3 x+3/ x^2+7x+12 I need to find the limity using subsitution, a table, or by graphing...
Monday, December 17, 2012 at 8:22pm

Calculus
A spherical party balloon is being inflated with helium pumped in at a rate of 12 cubic feet per minute. How fast is the radius growing at the instant when the radius has reached 1 ft?
Monday, December 17, 2012 at 7:30pm

Given the following polynomial f(x)=(x-1)(x-5), find A.the zeros and the multiplicity of each one b. where the graph crosses or touches the x-axis c.the number of turning points d. the end behavior Please show work.
Monday, December 17, 2012 at 6:13pm

Calculus
Integrate ç (x^3)/ã((x^2)+4) dx
Monday, December 17, 2012 at 10:22am

Math (Calculus)
Determine the arc length of the following on the specified interval: y=1/2x^3/2 , x=0, x=4
Monday, December 17, 2012 at 10:04am

Calculus
Find the area between the following curves y1= x2−4x+3 y2=−x2+2x+3
Monday, December 17, 2012 at 9:57am

Given the following polynomial, find a. the zerros and the multiplicity of each b. where the graph crosses or touches the x-axis c. number of turning points d. end behavior f(x)=(x-1)(x-5) **please show work**
Monday, December 17, 2012 at 1:04am

Calculus
Evaluate the integral by changing to spherical coordinates. The outer boundaries are from 0 to 1. The middle one goes from -sqrt(1-x^2) to sqrt(1-x^2) The inner one goes from -sqrt(1-x^2-z^) to sqrt(1-x^2-z^) for 1/sqrt(x^2+y^2+z^2) dydzdx I don't understand how to get the...
Monday, December 17, 2012 at 12:08am

calculus
find derivative y= 3x^5-6x^3/7secx find dy/dx * xcosy= 5( y+cosx) * X^5-Y^3+8XY=466 * A RIGHT TRIANGLE HAS LEGS OF LENGTH 15M AND 7M. THE 7M LEG IS NOT CHANGING. 15M LEG IS GETTING LONGER AT RATE OF 8M PER SECOND. SO WHAT IS RATE OF CHANGE OF THE HYPOTENUSE?
Sunday, December 16, 2012 at 11:38pm

Calculus
Evaluate the integral by changing to spherical coordinates. The outer boundaries are from 0 to 1. The middle one goes from -sqrt(1-x^2) to sqrt(1-x^2) The inner one goes from -sqrt(1-x^2-z^) to sqrt(1-x^2-z^) for 1/sqrt(x^2+y^2+z^2) dydzdx I don't understand how to get the...
Sunday, December 16, 2012 at 11:14pm

find the rate of change of f(x)=x^2+4 a. from -2 to 0 b. from 1 to 3 c. from -2 to 1 please show work
Sunday, December 16, 2012 at 10:47pm

Calculus
Evaluate the integral by changing to spherical coordinates. The outer boundaries are from 0 to 1. The middle one goes from -sqrt(1-x^2) to sqrt(1-x^2) The inner one goes from -sqrt(1-x^2-z^) to sqrt(1-x^2-z^) for 1/sqrt(x^2+y^2+z^2) dydzdx I don't understand how to get the...
Sunday, December 16, 2012 at 9:22pm

calculus
*find the slope of y= 4/x +6 at the point (8,2) *evaluate the derivative at the point (pi,4) y=[tan(5x^8)]^3 please help
Sunday, December 16, 2012 at 9:14pm

calculus
Determine the largest rectangle that can be inscribed inside the cavities of the two curves: y = –2(x – 6)2 & y = 6x2 –12*Tx – 128 + 6*T2
Sunday, December 16, 2012 at 8:35pm

calculus
A 6 m3 box with a perfect triangle base and lid and 3 rectangular walls is to be constructed from 2 materials. The cost to make the base 1\$/ft2 and that for the lid and walls is 4/2 \$/ft2. What dimensions will result in the most cost-effective construction?
Sunday, December 16, 2012 at 8:33pm

Calculus
Evaluate the integral by changing to spherical coordinates. The outer boundaries are from 0 to 1. The middle one goes from -sqrt(1-x^2) to sqrt(1-x^2) The inner one goes from -sqrt(1-x^2-z^) to sqrt(1-x^2-z^) for 1/sqrt(x^2+y^2+z^2) dydzdx I don't understand how to get the...
Sunday, December 16, 2012 at 6:20pm

AP calculus
The base of a cone-shaped tank is a circle of radius 5 feet, and the vertex of the cone is 12 feet above the base. The tank is being filled at a rate of 3 cubic feet per minute. Find the rate of change of the depth of water in the tank when then depth is 7 feet.
Sunday, December 16, 2012 at 5:29pm

calculus
answer the questions about the following function f(x)= 10x^2/x^4+25 a. is the point (-sqrt 5,1) on the graph b. if x=3, what is f(x)? what point is on the graph of f? c. if f(x)=1, what is x? what points are on the graph? d. what is the domain of f? e. list the x-intersepts? ...
Sunday, December 16, 2012 at 9:48am

calculus
for the given functions f&g, find the following and state the domain of each result. f(x)= 5x+4/7x-8; g(x)= 2x/7x-8 a. (f+g)(x)=? what is the domain? b. (f/g)(x)=? what is the domain?
Saturday, December 15, 2012 at 10:24pm

calculus
find the rate of change of f(x)=x^2+4 a. from -2 to 0 b. from 1 to 3 c. from -2 to 1 pllease show work
Saturday, December 15, 2012 at 10:06pm

calculus
determine the average value of f(x) over the interval from x=a to x=b, where f(x)=100e^-.5x; a=0, b=4
Saturday, December 15, 2012 at 6:04pm

Math - Calculus
Water is flowing in a cylindrical pipe of radius 1 inch. Because water is viscous and sticks to the pipe, the rate of flow varies with distance from the center. The speed of the water at distance r inches from the center is 10(1-(r^2)) per second. What is the rate (in cubic ...
Saturday, December 15, 2012 at 1:17pm

calculus ..&gt;steve
Given a function f(x)2/3x^3+5/2x^2-3x. a) Find i. The inflection point. ii. The y-intercept and x-intercept. b) Sketch the graph of f(x). i have already try it..but i dont understand.. which graph that is true.. the first or second ? and how to calculate the x,y intercept,and...
Saturday, December 15, 2012 at 12:36pm

help...urgent..calculus..please show tthe way to s
Sony Ent. is marketing a new smartphone. It determines that in order to sell x smartphones, the price per product must be p=280-0.4x. It also determine that the total cost of producing x smartphones is given by c(x)=5000+0.6x^2 . a. Find the total revenue, R(x). b. Find the ...
Saturday, December 15, 2012 at 12:30pm

help...urgent..calculus
Sony Ent. is marketing a new smartphone. It determines that in order to sell x smartphones, the price per product must be p=280-0.4x. It also determine that the total cost of producing x smartphones is given by c(x)=5000+0.6x^2 . a. Find the total revenue, R(x). b. Find the ...
Saturday, December 15, 2012 at 12:23pm

calculus
Q4. Given a function f(x)2/3x^3+5/2x^2-3x. a) Find i. The inflection point. ii. The y-intercept and x-intercept. b) Sketch the graph of f(x).
Saturday, December 15, 2012 at 11:36am

calculus
. Sony Ent. is marketing a new smartphone. It determines that in order to sell x smartphones, the price per product must be It also determine that the total cost of producing x smartphones is given by a. Find the total revenue, R(x). b. Find the total profit, P(x). c. How many...
Saturday, December 15, 2012 at 11:18am

calculus
A ladder 25 m long leans against a vertical all. If the lower end is being moved away from the wall at the rate 6m/sec, how fast is the height of the top decreasing when the lower end is 7m from the wall?
Saturday, December 15, 2012 at 11:12am

math 10 pre calculus
12. An avalanche rescue team travels 8.55 km along a snow-covered trail. For the first section, the trail is flat. The team averages a speed of 2.7 km/h. Then, the terrain becomes mountainous and their average speed is only 1.2 km/h. The one-way trip takes the team 4.0 h. ...
Friday, December 14, 2012 at 8:36am

calculus
for the following f defined by f(x)=4x^2+3x+2. find the following values. a. f(-2)= b. f(-x)= c. -f(x)= df(x+h)= please show work
Thursday, December 13, 2012 at 10:00pm

calculus
for the following f defined by f(x)=4x^2+3x+2. find the following values. a. f(-2)= b. f(-x)= c. -f(x)= df(x+h)= please show work
Thursday, December 13, 2012 at 10:00pm

calculus
find the function that is finally graphed after the following transformations are applied to y=square root x in the order listed. a. reflected about the x-axis b. shift up 7 units c. shift right 5 units y=? would the answer be: y=sqrt(-x-5)-7
Thursday, December 13, 2012 at 9:53pm

calculus
for the function f(x)=5/x+4, find the average rate of change of f from 1 to x. please show work
Thursday, December 13, 2012 at 9:46pm

calculus
find the function that is finally graphed after the following transformations are applied to the graph of y=square root x in the order listed. a. reflected about the y-axis b. shift down 3 units c. shifht left 9 units please show work
Thursday, December 13, 2012 at 9:19pm

calculus
write the function whose graph is the function of y=(x+5)^2 but is reflected about the x-axis. y=
Thursday, December 13, 2012 at 9:11pm

calculus
find the rate of change of f(x)-x^2+4 a. from -2 to 0 b. from 1 to 3 c. from -2 to 1 please show work
Thursday, December 13, 2012 at 8:58pm

calculus
for the given functions f&g, find the following and state the domain of each result. f(x)=5x+4/7x-8; g(x)=2x/7x-8 a.(f+g)(x)= ? what is the domain? b. (f/g)(x)= ? what is the domain? Please show work
Thursday, December 13, 2012 at 7:48pm

calculus
the area of a rectangle is A=lw. Further suppose l=2w. calculate dA in terms of the differential dw. does this just mean to get the derivative of 2w^2
Thursday, December 13, 2012 at 4:53pm

calculus
determine the cubic function with 1 point of inflection and no relative minima or maxima.
Thursday, December 13, 2012 at 4:51pm

calculus
Calculate the area between curves y=e^x and y=-e^x on the interval [0,1]
Thursday, December 13, 2012 at 4:50pm

calculus
find the sides of triangle such that area is maximum.
Thursday, December 13, 2012 at 7:30am

calculus
find the area of triangle such that area is maximum
Thursday, December 13, 2012 at 7:20am

calculus
Amy wants to reach, as quickly as possible, a destination of 5km downstream and on the opposite side of the river that is 1.5km wide. If she can run at 16kmp and can swim at 5kmp, how far should she run down the shore before turning into the water to swim? Consider the river ...
Wednesday, December 12, 2012 at 9:28pm

calculus
Find the average rate of change f(x)=x^3-8x+9 a. from -3 to -2 b. from -1 to 5 c. from 5 to 9 A. what is average rate of change of f(x)=x^3-8x+9 from -3 to -2? B. what is the average rate of change of f(x)-x^3-8x+9 from -1 to 5? C. what is the average rate of change of f(x)=x^...
Wednesday, December 12, 2012 at 8:37pm

calculus
What is the nth derivative of sinhx and coshx?
Wednesday, December 12, 2012 at 7:17pm

Math Calculus 1
Have mercy! Find the volume of the solid obtained by rotating y=3+2x-x^2, x+y=3 about the y-axis.
Wednesday, December 12, 2012 at 4:35am

calculus
given the following piecewise function x+11 for -9<=x<-3 y= { 2 for -3<=x<=2 2x-6 for 2<x<=5 a. find the domain b. find the range c. find the intercepts d. is f continuos on its domain. If not, state where f is discontinious e. graph the function This symbol...
Wednesday, December 12, 2012 at 12:41am

calculus
graph the following function using transformations. Be sure to graph all the stages on one graph. state the domain and range. y= -3/x/+1 NOT QUITE SURE HOW TO MAKE THE STRAIGHT UP AND DOWN LINE, INSTEAD OF THIS--/.
Wednesday, December 12, 2012 at 12:12am

calculus
find all discontinuities (16x/2x3-8x3=0)
Tuesday, December 11, 2012 at 7:26pm

Calculus
lim x->2 (((1/(sqrt(2+s))-1)/(s+1))
Tuesday, December 11, 2012 at 5:13pm

calculus
I need help solving the following problem. Could someone please help me and explain how to work the equation. Thanks in advance. [intergral x sqrt3x dx I hope this makes sense
Tuesday, December 11, 2012 at 2:48pm

calculus
The region A is bounded by the curve y=x^2-5x+6 and the line y = -x + 3. (a) Sketch the line and the curve on the same set of axes. (b) Find the area of A. (c) The part of A above the x-axis is rotated through 360degree about the x-axis. Find the volume of the solid generated...
Tuesday, December 11, 2012 at 12:54pm

calculus
The line y+x=9 intersects the curve y=x^2-2x+3 at the points P and Q . (a) Find the coordinates of P and Q . (b) Sketch the line and the curve on the same set of axes. (c) Calculate the area enclosed by the line and the curve.
Tuesday, December 11, 2012 at 12:50pm

Calculus
A bacteria culture contains 200 cells initially and grows at a rate proportional to its size. After half an hour the population has increased to 360 cells. (a) Find the number of bacteria after t hours. (b) Find the number of bacteria after 4 hours. I found part a, P(t)= 200e...
Tuesday, December 11, 2012 at 4:18am

given the following piecewise function F(x)={x+11 for -9¡Üx<-3 2 for -3¡Üx¡Ü2 2x-6 for 2<x¡Ü5 {--this symbol is to be around all three of the lines. Find: a. the domain b. the range c. the intercepts d. if f continious on its ...
Monday, December 10, 2012 at 11:10pm

calculus
f(x)=x^​6-​10*​x^̴​3;5-​7*​x^​4+​80​*​x^​3+​12*​x^&#​8203;2-​192*​x how to find the answer an its graph???
Monday, December 10, 2012 at 1:40pm

pre calculus
A airplane is 145 miles North and 85 miles west of an airport. What is the compass direction from the airport to the airplane?
Monday, December 10, 2012 at 1:17am

Calculus
Evaluate the limit as h approaches zero of (the cubed root of 8-h)-2/h. Can also be written ((8-h)^1/3)-2)/h
Sunday, December 9, 2012 at 9:51pm

Calculus
find the derivative (df/dx) of the squareroot of sin4x
Sunday, December 9, 2012 at 9:40pm

Calculus
Let f be a continuous function on the interval [0,2] which satisfies integral of f(x)dx=5 when b is 2 and a is 0. Give this information compute the definite integral f(2y)dy when b is 1 and a is 0. Solve this
Sunday, December 9, 2012 at 8:48pm

calculus
find an equation for the line with the given properties. express the equation in slope-intercept form containing the points. P=(-5,4) and Q=(-4,2) plz show work
Sunday, December 9, 2012 at 7:55pm

calculus
find the distanced(p_1&P_2) between points P_1 and P_2. P_1=(4,-5) and P_2=(3,4) plz show work
Sunday, December 9, 2012 at 7:52pm

Calculus
Suppose a reflector is attached to a 26 inch diameter bike wheel, 8 inches from the center. If the bike wheel rolls without slipping, find parametric equations for the position of the reflector. I thing i use parametrics????
Sunday, December 9, 2012 at 6:08pm

Calculus
lim as x->infinity [(x^3+x^2)^1/3] - [(x^3-x^2)^1/3]
Sunday, December 9, 2012 at 4:42pm

calculus
find the distance d(P_1 & P_1) between points P_1 and P_2. P_1=(4,-5)and P_2=(3,4) please show work
Sunday, December 9, 2012 at 11:57am

calculus
find the midpoint of the line segment joining the points P_1 and P_2. P_1=(-2,6); P_2=(5,0) m=(x,y) please show work
Sunday, December 9, 2012 at 11:55am

calculus
If a bone is found to have 20% of its normal amount of carbon 14, how old is the bone?
Sunday, December 9, 2012 at 10:53am

calculus
If a bone is found to have 20% of its normal amount of carbon 14, how old is the bone?
Sunday, December 9, 2012 at 10:53am

Calculus
Find the equation of the tangent line to the graph of 4y^2− xy − 3 = 0, at the point P=(1,1)
Sunday, December 9, 2012 at 10:44am

calculus
The base of a cell phone tower is an equilateral triangle with sides 10 ft long. How far is one corner of the triangle from the center of the of the triangle?
Sunday, December 9, 2012 at 10:43am

calculus
How many gallons of gas is in a cylindrical tank (that is laying on it’s side, the circular bases are vertical, the diameter of the bases are 5 feet, the length of the tank is 8 feet, the gas is at a 2 ft level)?
Sunday, December 9, 2012 at 10:41am

calculus
find the center (h,k) and radius r of the circle and then use these to (a)graph circle, (b) find intercepts if any
Sunday, December 9, 2012 at 4:15am

I can get part of the answer then I get stumped. find the center and radius of the circle, Write the standard form of the equation. (4,3)(1,3) to get center: (1+4/2, 3+3/2)=5/2,3 answer:5/2,3 for center radius: then i am stuck
Sunday, December 9, 2012 at 4:10am

calculus
I have two questions please. 1. find an equation for the line with the given properties. Express in slope-inntercept form. 2. find the equation of a line that is perpendicular to the line y=1/2x+4 and contains the point (-3,0) please show work
Sunday, December 9, 2012 at 2:01am

calculus
I have two questions please. 1. find an equation for the line with the given properties. Express in slope-inntercept form. 2. find the equation of a line that is perpendicular to the line y=1/2x+4 and contains the point (-3,0) please show work
Sunday, December 9, 2012 at 2:01am

calculus
use differentials to approximate the value of the expression: square root of 64.07
Sunday, December 9, 2012 at 1:33am

calculus
find the differential dy of the given function y=3x-4 sec(2x-1)
Sunday, December 9, 2012 at 1:30am

calculus
determine whether the mean value theorem can be applied to f on the closed interval [a,b]. If the Mean Value Theorem can be applied, find all values of c in the open interval (a,b) such that f(c) =f(b) - f(a) / b - a
Sunday, December 9, 2012 at 1:16am

CALCULUS
a bacteria culture grows with a constant per capita growth rate. After 2 hours there are 500 bacteria and after 6 hours the count is 312500, find the initial population and the population after 8 hours
Sunday, December 9, 2012 at 1:13am

calculus
optimization find the point on the graph of the function that is closest to the given point f(X)= square root of x point:(8,0)
Sunday, December 9, 2012 at 1:12am

calculus
find the points of inflection and discuss the concavity of the graph of the function f(x) = -sin x + cos X 0<x< 2pie
Sunday, December 9, 2012 at 1:10am

Calculus
Find the critical numbers of f, find the open intervals on which the function is increasing or decreasing and use the first derivative test to identify all relative extremes f(x) = 3 + cos^2 x 0<x<2pie
Sunday, December 9, 2012 at 1:08am

calculus
a norman window is constructed by adjoining a semicircle to the top of an ordinary rectangular window. Find the dimensions of a Norman window of maximum area it the total perimiter is 52 feet.
Sunday, December 9, 2012 at 1:05am

calculus
find the equation of line L. L is parellel to y=4x show work pleaase..
Sunday, December 9, 2012 at 12:39am

pre calculus
How many gallons of gas is in a cylindrical tank (that is laying on it’s side, the circular bases are vertical, the diameter of the bases are 5 feet, the length of the tank is 8 feet, the gas is at a 2 ft level)?
Saturday, December 8, 2012 at 11:59am

Calculus
Find the slope of the tangent line to f(x)=x/x^2+1 at (2,f(2)).
Friday, December 7, 2012 at 9:16pm

calculus
I really hate to dump a problem like this on the teachers here, but I really need to get an answer to this. Thank you and I'm sorry. A Norman window is constructed by adjoining a semicircle to the top of an ordinary rectangular window. Find the dimensions of a Norman ...
Friday, December 7, 2012 at 6:39pm

calculus
Sasha is in the park with her friend megan. They are separated by 50 ft. megan lets go of his red ballon and it goes straight up in the air. At what rate is sasha's eye angle changing if he is watching the ballon rise at a rate of 4 ft per sec, the moment the balloon is ...
Friday, December 7, 2012 at 3:54pm

Calculus
A rectangular microprocessor chip is designed to have an area of 121mm^2.What must its dimensions be if its perimetar is to be a minimum?
Friday, December 7, 2012 at 10:32am

calculus
I have two questions please 1.for the given equation list the intercepts and test for symmetry 49x^2+y^22=49 2. for the midpoint of the line segment from p_1 to P_2 is (-5,4). if P_1=(-2,2) what is P_2? Please show work
Friday, December 7, 2012 at 1:58am

calculus
Plot the points and determine the slope of the line containing them (-7,-4);(8,-4) please show work
Friday, December 7, 2012 at 1:19am

calculus
If (a,-12)is a point on the graph of y=x^2+7, what is a?
Friday, December 7, 2012 at 1:17am

calculus
a woman throws a ball vertically upwards so that 4seconds elapse before it strikes the ground. Determine the maximum height of the ball and the velocity with which the ball was thrown. Assume that the acceleration due to gravity is 10m/s squared and neglect the effect of air ...
Thursday, December 6, 2012 at 11:33pm

Calculus
A solid is formed by adjoining one hemisphere to the top of a cylinder. The total volume of the solid is V (treat as a constant) cubic centimeters. Find the minimum surface area of the solid in terms of V.
Thursday, December 6, 2012 at 8:28pm

Math-Calculus
Volume using disk method: x=.000574y^(2)-.439y+185 Interval: (0,500)
Thursday, December 6, 2012 at 5:52pm

calculus
Use left endpoints and 9 rectangles to find the approximation of the area of the region between the graph of the function cos2x and the x-axis over the interval [0, pi/2] . Round your answer to four decimal places.
Thursday, December 6, 2012 at 2:38pm

calculus
A ball is thrown vertically upwards from a height of 6 ft with an initial velocity of 60 ft per second. How high will the ball go? Note that the acceleration of the ball is given by a(t)= 32 feet per second per second.
Thursday, December 6, 2012 at 1:49pm

calculus
a lighthouse is 1 km from the shoreline and revolves at 10 pi radians a minute what is the speed of the light as it sweeps across the shore as it lights up at sand at 2 km from the light house
Thursday, December 6, 2012 at 9:49am

calculus
a bridge is 10 m. above a canal. A motorboat going 3 m/sec passes under the center of the bridge at the same instant that a woman walking 2 m/sec reaches that point. How rapidly are they separating 3 sec. later?
Thursday, December 6, 2012 at 6:09am

Calculus
How many coefficients in the binomial series expansion of (1+x)^7 are divisible by 7?
Thursday, December 6, 2012 at 5:00am

Calculus
what is the differential of (217)^1/2
Wednesday, December 5, 2012 at 9:31pm

Calculus
Given the function y=(x^2-5/x+3), answer the following questions. a) Find dy/dx. Simplify your answer b) Find the coordinates of any points on the graph of y where the tangent line is horizontal. Show your work. c) Are there any points on the graph of y where the tangent line ...
Wednesday, December 5, 2012 at 1:29am

Calculus
the slope of the line tangent to the curve y=(tanx/cosx) at x=(pi/3) is? a)-8 b)2√3 c)3√2 d)8 e)14
Wednesday, December 5, 2012 at 1:26am

Calculus
Use n = 6 subdivisions and left endpoints to estimate the area under the graph of f(x) = 2x + 1 between x = 0 and x = 3.
Wednesday, December 5, 2012 at 12:42am

Calculus
Use n = 3 subdivisions and left endpoints to estimate the area under the graph of f(x) = 3x 2 + 1 between x = 0 and x = 1.
Wednesday, December 5, 2012 at 12:42am

Calculus
Set up a Riemann sum to estimate the area under the graph of f(x) = 5x 2 + 2 between x = 0 and x = 1 using 3 subdivisions and left endpoints. Draw the graph and the 3 rectangles
Wednesday, December 5, 2012 at 12:41am

set up an integral to find the volume of an equilateral tetrahedron.
Tuesday, December 4, 2012 at 10:58pm

Calculus
I can do the Ferris Wheel type. This one I can not solve. A light is attached to a 13 inch radius bicycle tire, at a point 8 inches from the center. If Harvey rides the bike at 15 mph, how fast is the light moving up and down at its fastest?
Tuesday, December 4, 2012 at 10:30pm

Calculus
A trough is triangular in cross section, an isosceles triangle with sides of 12 inches, and a top of 10 inches. The trough is 40 inches long. How fast is the depth changing if you are pumping one cubic foot per minute into the trough? I am having a hard time getting it in ...
Tuesday, December 4, 2012 at 10:28pm

calculus
find an equation for the line with the given properties. express the equation in slope-intercept form. containing the pointsP=(-1,1)& Q= (1,-2) What is the equation of the line? y= Find the the equation of a line that is perpendicular to the line y=1/2x+4 and contains the ...
Tuesday, December 4, 2012 at 8:45pm

calculus
If (a,-12) is a point on the graph of y=x^2+7x, what is a? please show work
Tuesday, December 4, 2012 at 8:36pm

calculus
Plot the points and determine the slope of the line containing them. (-7,-4)(8,-4)
Tuesday, December 4, 2012 at 8:34pm

calculus
The midppoint of the line segment from P_1 to P_2 is (-5,4). If P_1=(-2,2), what is P_2? For the given equation list the intercepts and test for symmetry. 49x^2+y^2=49 Please show work
Tuesday, December 4, 2012 at 8:28pm

calculus
find the distance d (P_1 & P_2) between points P_1 and P_1. P_1=(-3,3) P_2=(1,5) Find the midpoint of the line segment joining the points P_1 and P_2. P_1=(1,1) P_2=(-3,3) Please show all work
Tuesday, December 4, 2012 at 8:24pm

Calculus
Find the parametric equations for the line of intersection of the planes x+y+z=3 and x-y+2z=2 I took the cross product of the 2 equations and got 3i-j-2k I then set z=0 and got x=5/2 and y=1/2. I got: x=5/2 +3t y=1/2-t z=-2t However, the answers are supposed to be: x=5/2-(3/2)...
Tuesday, December 4, 2012 at 5:40pm

calculus
INTEGRATION USING PARTIAL FRACTIONS a) 4x^2-3x+2 / x^3-x^2-2x dx b) x^2 / (x+1)(x+1)^2 dx c) 3-3x / 2x^2+6x dx d) x^2+2x-1 / (x^2+1)(x-1) dx ##anybody can help me for this question?
Tuesday, December 4, 2012 at 12:47pm

Calculus
Find the parametric equations for the line of intersection of the planes x+y+z=3 and x-y+2z=2 I took the cross product of the 2 equations and got 3i-j-2k I then set z=0 and got x=5/2 and y=1/2. I got: x=5/2 +3t y=1/2-t z=-2t However, the answers are supposed to be: x=5/2-(3/2)...
Tuesday, December 4, 2012 at 11:46am

Calculus
Consider a manufacturer whose total cost of producing x items is given by c(x)=10000+5x+1/9x^2. a. What is the average cost function A(x)= c(x)/x? b. How many items should the manufacturer produce in order to minimize average cost? c. What is the smallest average cost? d. Find...
Tuesday, December 4, 2012 at 9:32am

Calculus
When an electronics store prices a certain brand of stereos at p hundred dollars per set, it is found that q sets will be sold each month, where q2 + 2 p2 = 41. a. Find the elasticity of demand for the stereos using implicit differentiation. b. For a unit price of p = 4 (\$400...
Tuesday, December 4, 2012 at 9:31am

Calculus
integral (4x^2-3x+2)/(4x^2-4x+3) dx
Tuesday, December 4, 2012 at 4:00am

calculus
INTEGRATION BY PARTS... 1) e^5t sin 3t dt 2) xe^3x dx 3) x sec^2 x dx **anybody can help me for this question?
Tuesday, December 4, 2012 at 12:09am

calculus
determine the volume of the solid of revolution generated by revolving the region bounded by y=x^3-x^5, y=0, x=0 and x=1 about the line x=3
Monday, December 3, 2012 at 10:41pm

math calculus
. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
Monday, December 3, 2012 at 9:52pm

math calculus
. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
Monday, December 3, 2012 at 9:39pm

math calculus
. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
Monday, December 3, 2012 at 9:38pm

math calculus
. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
Monday, December 3, 2012 at 9:32pm

math calculus
. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
Monday, December 3, 2012 at 9:27pm

math calculus
. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
Monday, December 3, 2012 at 9:14pm

math calculus
. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
Monday, December 3, 2012 at 8:59pm

Calculus
When an electronics store prices a certain brand of stereos at p hundred dollars per set, it is found that q sets will be sold each month, where q2 + 2 p2 = 41. a. Find the elasticity of demand for the stereos using implicit differentiation. b. For a unit price of p = 4 (\$400...
Monday, December 3, 2012 at 8:53pm

Pages: <<Prev | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>