5. A1.5-mm layer of paint is applied to one side ofthe following surface. Find the approximate volume of paint needed. Assume that x and y are measured in meters. The spherical zone generated when the curve y = 4.,1'14xx2 on the interval 1 5x5 5 is revolved about the x-axis. The volume of paint needed is m3. (Type an exact answer, using a: as needed ) 5. Find the area of the surface ge erated when the given curve is revolved about the given axis. 1 v = (3x) 3 , for 0 5 x 5 9; about the vaxis The surface area is square units. (Type an exact answer, using a: as needed.) 7'. Find the area of the surface generated when the given curve is revolved about the given axis. 8 19 3!: 3x 6; for 5 sxs g; about the yaxis (Hint: Integrate with respect to y.) The surface area is :l square units. {Type an exact answer, using 1: as needed.)