Find the average value of    over the given region. over the rectangular solid in the first octant bounded by the coordinate planes and the planes  

A. 27
B. 162
C. 9
D. 54


Answer: C

Mathematics

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Find the center of mass of a thin plate covering the given region with the given density function.The region enclosed by the parabolas y = 18 - x2  and y = x2, with density ?(x) = x2

A.  = 0,  = 9
B.  = 0,  = 
C.  = 9,  = 0
D.  = 0,  = 18

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Find the indicated limit. 

A. 3 B. 0 C. 1 D. -?

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Solve.A certain drug comes in 2000-mg pills. How many of these pills do you have to take to get a dosage of half a gram?

A.  pill
B.  pill
C. 5 pills
D. 4 pills

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Find the absolute value.|8|

A. -8 B. 0 C. 16 D. 8

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