Using the least number of integrals, set up the iterated integral that would determine the volume of the solid beneeath the surface z = xey on the region bounded by the curves y = 4 - x2, y = 3x, and 0 <= y < = 3.

Find the exact lateral area of each solid in Exercise 40. Find the exact volume of the solid formed when the region bounded in Quadrant I by the axes and the lines x = 9 and y = 5 is revolved about the a) x-axis b) y-axis

For the sphers x-12+y+22+z-42=36 and x2+y2+z2=64, find the ratio of their a surface areas. b volumes.