Solve the problem.What are the dimensions of a rectangular box, open at the top, which has maximum volume when the surface area is 48 in.2?
A. x = 4 in., y = 2 in., z = 2 in.
B. x = 4 in., y = 4 in., z = 2 in.
C. x = 6 in., y = 6 in., z = 3 in.
D. x = 8 in., y = 2 in., z = 6 in.
Answer: B
Mathematics
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A. 
B. 
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D. 
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A. 70.6 lb B. 70 lb C. 70.4 lb D. 70.5 lb
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A. x2 + 2 B. x + 2 C. x - 5 D. x3 - 5
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A. 152.487 B. 152.587 C. 152.477 D. 152.577
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