# REALLY NEED HELP!!!!

Most popular questions and responses by REALLY NEED HELP!!!!
1. ## Math: Calculus

The velocity of a car is f(t)=7t meters/second. Use a graph of f(t) to find the exact distance traveled by the car, in meters, from t = 0 to t = 10 seconds

2. ## Math: Calculus

The velocity function is v(t)= t^2-5t+ 4 for a particle moving along a line. The position function s(t) is an antiderivative of the velocity function. Find the displacement, s(6) - s(-3), by the particle during the time interval [-3,6].

3. ## Math: Calculus

A fence 6 feet tall runs parallel to a tall building at a distance of 2 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?

4. ## Math: Calculus

A cylinder is inscribed in a right circular cone of height 3.5 and radius (at the base) equal to 7. What are the dimensions of such a cylinder which has maximum volume?

5. ## Math: Calculus

Answer the following questions for the function f(x) = \frac{ x^3 }{ x^2 - 36 } defined on the interval [ -20, 16 ]. A. The function f(x) has vertical asympototes at____ and___ B. f(x) is concave up on the region___ to and____ to___ C. The inflection point

6. ## Math: Calculus

Can someone help me out here with these two problem? I have know idea where to start. 1)The equation: 10(x-1)(x-2)(x-3)=1, has three real solutions a

7. ## Math: Calculus

Consider the function f(x) whose second derivative is f''(x) = 8x + 4sin(x). If f(0) = 2 and f'(0) = 2, what is f(x)? I got... f'(x)=4(x^2 - cos[x]) and f(x)=(4(x^3 - 3sin[x]))/3 but it's wrong. Can anyone explain to me how to solve this.

8. ## Math: Calculus

Find the smallest positive value of which satisfies -- x=4.100cos(2.800x) Give the answer to four places of accuracy._________ Remember to calculate the trig functions in radian mode.

9. ## Math: Calculus

You are given the four points in the plane A = (5,-6), B = (9,1), C = (14,-6), and D = (19,2). The graph of the function f(x) consists of the three line segments AB, BC and CD. Find the integral f(x)dx from 5 to 19 by interpreting the integral in terms of

10. ## Math: Calculus

Estimate the area under the graph of f(x)=3x^3+5 from x=-1 to x=4, first using 5 approximating rectangles and right endpoints, and then improving your estimate using 10 approximating rectangles and right endpoints. I'm having problem with using the

11. ## Math: Calculus

The equation: 10(x-1)(x-2)(x-3)=1, has three real solutions a

12. ## Math: Calculus

Estimate the area under the graph of f(x)=x^2+2x from x = 4 to x = 10 using 3 approximating rectangles and left endpoints. I got 290.25 as my answer but it's wrong. Would someone explain to me how to answer this question.

13. ## Math: Calculus

Given f''(x) = 4x - 3 and f'( -3) =2 and f( -3)=-1. Find f'(x) =______ and find f( 1) =_____

1. ## Math: Calculus

Never mind i got it.

posted on November 11, 2010
2. ## Math: Calculus

That's the problem. I have no idea. The question is exactly like i posted it here. I did the same thing but i realized i wasn't given a value of what it should equal to. I was hoping there a different way of solving this problem

posted on November 11, 2010
3. ## Math: Calculus

I don't know why but the answer is wrong.

posted on November 10, 2010
4. ## Math: Calculus

This website doesn't help me in solving my question.

posted on November 4, 2010
5. ## Math: Calculus

This website doesn't help me in solving my question.

posted on November 4, 2010
6. ## Math: Calculus

f(x)=(x^3)/(x^2-36)

posted on November 3, 2010
7. ## Math: Calculus

I actually got 10.811 ft

posted on October 29, 2010
8. ## Math: Calculus

I manage to get to that point but maximizing it is the problem.

posted on October 29, 2010
9. ## Math: Calculus

THANKS YOU Reiny!!! You are a great help. Turns out my "y" was wrong but I did get the "x"

posted on October 29, 2010