Evaluate by using polar coordinates. ∫ −5
5

∫ 0
25−x 2


dydx A) 2


B) 2
125π

C) 2
25π

D) 2
π

Find the volume of the region enclosed by the paraboloids z=x 2
+y 2
−4 and z=14−x 2
−y 2
A) 243π B) 81π C) 162π D) 324π