Last week (or longer) I asked how to integrate the following rotated 360 degrees about the x-axis (and I still can't figure it out): y= [(1-(x-3)^2)/9)]^(1/2) + 2 When I applied the boundaries of 0 to 6, I got 23.2 cm^3, but I don't think its the boundaries that are my problem, I think it is the integration. Help! I need this for tomorrow. Thanks!!