# Calculus

Find the surface area formed by revolving the graph of f(x)=81-x^2 on the interval [0,9] about the y-axis. (express the answer in terms of pie.)

1. 👍 0
2. 👎 0
3. 👁 102

## Similar Questions

1. ### Calculus AP Exam review explanation pls

1)What is the area bounded by y = x^2 and y =3x? A)5 B)9/2 ***C)8 D)11.2 E)25 i believe it to be 8 but im not sure. 2)The region R is bounded by the x-axis, x = 2, and y = x^2. Which of these expressions represents the volume of

asked by ReviewDay :( on March 3, 2017
2. ### calculus

Let R be the region in the first quadrant that is enclosed by the graph of y = tanx, the x-axis, and the line x = π/3 h. Find the area of R i. Find the volume of the solid formed by revolving R about the x-axis

asked by Naseba on April 4, 2012
3. ### Calculus Urgent

graph y=cos(pi*x/2) and y=1-x^2 and use integration to find the area in between the curve. Okay, so when I graph these two I see that they like overlap during the [-1,1] x interval. But maybe there is still a small gap in between?

asked by Bethany on March 27, 2016
4. ### math-cal.

find the volume of the solid formed by revolving the region bounded by the graph of y=2x^2+4x and y=0 about the y- axis ( express the answernin terms of pie)

asked by Nancy on February 2, 2010
5. ### calculus(Lab)

Well, first graph the graph of f(x)=-1/10x^2 + 3 2. We are going to approximate the area between f and the x-axis from x = 0 to x = 4 using rectangles (the method of Riemann sums). This is not the entire area in the first

asked by Yoona on January 25, 2012
6. ### ap calc

find the volume generated by revolving the area bounded by y=-x^3, y=0, and x=-2 about the line x=1. I know how to the solve the problem but am not sure how to get the interval. Please help.

asked by anonymous on February 28, 2015
7. ### Math

Find the area of the surface generated by revolving the curve y = (x + 3)^1/2, 2 ≤ x ≤ 4 about the x-axis.

asked by Alex on September 21, 2010
8. ### Integral Calculus

Find the area of the surface generated by revolving the given curve about the y-axis. 8xy^2=2y^6+1 , 1

asked by Akitsuke on September 21, 2008
9. ### Calculus

(I know it looks like a lot but it's just 10 questions) (part 1 [It also explains my situation]: jiskha.com/questions/1788952/Hi-I-missed-school-due-to-illness-and-my-school-isnt-very-forgiving-so-I-would) (If your willing to do

asked by George on March 18, 2019
10. ### Integral calculus

find the area of the surface generated by revolving about x-axis the upper half of the ellipse 4x^2 + 16y^2 = 64

asked by Anonymous on May 29, 2016

More Similar Questions