A sporting goods manufacturer designs a golf ball having a volume of 2.48 cubic inches.

Formula ( V= 4/3r^3)

(a) What is the radius of the golf ball?

(b) The volume of the golf ball varies between 2.45 cubic inches and 2.51 cubic inches. How does the radius vary?

(c) Use the - definition of limit to describe this situation. State the meaning and value of , , a and L in the context of the problem.