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 = 6.8; d = 7.2
B. w = 6.8; d = 9.2
C. w = 4.8; d = 9.2
D. w = 5.8; d = 8.2
Answer: D
Mathematics
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Use the limit comparison test to determine if the series converges or diverges.
A. Converges B. Diverges
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Find the area of the shaded region.
?
?
What will be an ideal response?
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Determine the appropriate rotation formulas to use so that the new equation contains no xy-term.13x2 - 6xy + 7y2 - 8x + 8y = 0
A. x = 
x' - 
y' and y = 
x' + 
y'
B. x = 
x' - 
y' and y = 
x' + 
y'
C. x = 
(x' - y') and y = 
(x' + y')
D. x = -y' and y = x'
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Multiply.-0.1 ? (-0.5)
A. -0.4 B. -0.6 C. -0.5 D. 0.05
Mathematics