Simplify.
A. 
B. 
C. 
D. 48y(y + 9)
Answer: C
Mathematics
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Find the requested partial derivative.
if 
and 
.
A. 3(x2 + y2 + z2) B. 18(x2 + y2 + z2) C. 18x2 D. 3x2
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Find the length of the curve.The curve r = a cos2 
, 0 ? ? ? ?, a > 0
A. 2a
B. 
C. 2?a
D. 
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Round the number as indicated.812,419 to the nearest hundred thousand
A. 1,000,000 B. 900,000 C. 800,000 D. 700,000
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Complete.17,640 min = ___ wk
A. 105 B. 12.25 C. 1.75 D. 175
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