Concept explainers
Cost of a Can A can in the shape of a right circular cylinder is required to have a volume of 500 cubic centimeters. The top and bottom are made of material that costs per square centimeter, while the sides are made of material that costs per square centimeter.
(a) Express the total cost of the material as a function of the radius of the cylinder. (Refer to Figure 50.)
(b) Graph . For what value of is the cost a minimum?
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