Find the center of mass of a thin plate of constant density covering the given region.The region cut from the first quadrant by the circle x2 + y2 = 64
A. 
= 4, 
= 4
B. 
= 
, 
= 
C. 
= 0, 
= 
D. 
= 
, 
= 
Answer: D
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Find an antiderivative of the given function.f(x) = - 
A. 
B. - 
C. 
D. 
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Find the average cost per radio of producing the first 30 radios.
A. $1270.00 B. $44.00 C. $720.00 D. $1320.00
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In which item of apparel does the store have the smallest investment?
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