A cylindrical glass jar has a plastic top, if the plastic is half as expensive as glass per unit area, find the most economical proportions for the jar. a. h = 3/2 r b. h = 2/3 r c. h = 1/3 r d. h = 1/2 r

A cylindrical glass jar has a plastic top, if the plastic is half as expensive as glass per unit area, find the most economical proportions for the jar. a. h = 3/2 r b. h = 2/3 r c. h = 1/3 r d. h = 1/2 r

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter65: Achievement Review—section Six

Section: Chapter Questions

Problem 59AR: Solve these prism and cylinder exercises. Where necessary, round the answers to 2 decimal places...

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Question

A cylindrical glass jar has a plastic top, if the plastic is half as expensive as glass per unit area, find the most economical proportions for the jar.

a. h = 3/2 r

b. h = 2/3 r

c. h = 1/3 r

d. h = 1/2 r

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