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Writing Equations from Word Problems : Cost of Materials for Making a Cylindrical Can

A cylindricial can has a volume of 400*3.14cm^3. the material for the top and the bottom cost 2 cents per square centimeter. The material for the vertical surface costs 1 cents per square centimeter.

a. Express the cost C of the materials used to make the can as a function of the radius r.

b. Find the minimum cost.

Solution Summary

The cost for making a cylindrical can is minimized.