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Charlie Sheen? I don't see that one at all. Nope, the only one I can see is Ryan Haywood. Though I doubt being his stunt double would be very interesting. I'm not sure how many stunts he needs to do playing video games all day. I guess you could press space for him when he goes to jump off something high in Minecraft.

Hello, Sorry for the extended inactivity. I was unable to get 20pi as an answer, and eventually gave up. This was a bonus problem, so I wasn't that worried about it, as I figured it would be a better idea to study for my upcoming final than spend too much time on this problem. Then the class was over and I started worrying about other classes, and eventually completely forgot about this thread. Anyway, I'm still unable to get 20pi as an answer, but I did understand alexwang32's explanation, and I thought that seemed right. Anyway, thanks for the help on this problem everyone. On a side note, I thought it was worth mentioning that I think Daedalus, judging from his picture, looks a lot like Ryan Haywood from Roosterteeth. http://images3.wikia.nocookie.net/__cb20121229060260/roosterteeth/images/1/1b/Ryan50ba8afb9fedf.jpg

Yes, I graphed them and I know what the enclosed area looks like. I did the same problem revolving it around the x-axis, and around y=2. My problem is that I don't understand how to revolve it around x=7 because neither curve is closer or further away than the other, which is how you use the formula I was taught in class.

y=(1/4)x^2; y=5-x^2 Find the volume of the solid obtained by rotating the region bounded by the these curves about x=7. Okay, I thought I needed to change the given equations to x= sqrt(4y) and x= sqrt(5-y), but I'm sure that's not right, because then there is no enclosed region. Now I have no idea how to do this one. Can anyone help me with this? Thanks.