Solve the problem.The strength S of a rectangular wooden beam is proportional to its width times the square of its depth. Find the dimensions of the strongest beam that can be cut from a  cylindrical log. (Round answers to the nearest tenth.)

A. w = 7.5; d = 10.6
B. w = 8.5; d = 9.6
C. w = 8.5; d = 11.6
D. w = 6.5; d = 11.6


Answer: A

Mathematics

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