Answer: A can in the shape of a right circular cylinder is
Chapter 0, Problem 46(choose chapter or problem)
A can in the shape of a right circular cylinder is required to have a volume of 250 cubic centimeters. (a) Express the amount A of material to make the can as a function of the radius r of the cylinder. (b) How much material is required if the can is of radius 3 centimeters? (c) How much material is required if the can is of radius 5 centimeters? (d) Graph A = A(r). For what value of r is A smallest?
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