A community for students.
Here's the question you clicked on:
 0 viewing
megski312
 one year ago
Find the volume V of this solid that is rotating the region bounded by the given curves about the xaxis: y=4/x y=0 x=8 x=16. So far I have the integral pi (4/x)^2  (0)^2 dx. Do I foil 4/x from here? If so, how do I go about doing that? In other problems I've done, that's what I've done from here. Or do I take the antiderivative for the next step?
megski312
 one year ago
Find the volume V of this solid that is rotating the region bounded by the given curves about the xaxis: y=4/x y=0 x=8 x=16. So far I have the integral pi (4/x)^2  (0)^2 dx. Do I foil 4/x from here? If so, how do I go about doing that? In other problems I've done, that's what I've done from here. Or do I take the antiderivative for the next step?

This Question is Closed

primeralph
 one year ago
Best ResponseYou've already chosen the best response.1dw:1367719248961:dw

megski312
 one year ago
Best ResponseYou've already chosen the best response.0Am I taking the antiderivative from here? or what

megski312
 one year ago
Best ResponseYou've already chosen the best response.0would that be 4 ln x?

primeralph
 one year ago
Best ResponseYou've already chosen the best response.1My diagram says square 4/x

primeralph
 one year ago
Best ResponseYou've already chosen the best response.1dw:1367719589813:dw

megski312
 one year ago
Best ResponseYou've already chosen the best response.0did you square the numerator and denominator separately?

megski312
 one year ago
Best ResponseYou've already chosen the best response.0oh haha I didn't realize that was legal in the math world. stupid me

primeralph
 one year ago
Best ResponseYou've already chosen the best response.1huh? that's basic math

megski312
 one year ago
Best ResponseYou've already chosen the best response.0sometimes I forget those rules. I got 3pi/16 for the answer

primeralph
 one year ago
Best ResponseYou've already chosen the best response.1dw:1367719834362:dw

megski312
 one year ago
Best ResponseYou've already chosen the best response.0I put 16 in for x and then squared that and divided by 16. and subtracted that and what I got for doing the same for 8

primeralph
 one year ago
Best ResponseYou've already chosen the best response.1that should be your integral

megski312
 one year ago
Best ResponseYou've already chosen the best response.0dw:1367720116352:dw

primeralph
 one year ago
Best ResponseYou've already chosen the best response.1do you know how to integrate?

megski312
 one year ago
Best ResponseYou've already chosen the best response.0idk haha that's what I did with the last problem and it was right
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.