Find the moment or center of mass of the wire, as indicated.Find the center of mass of a wire that lies along the first-quadrant portion of the circle  if the density of the wire is 

A.  =  = 
B.  = 1,  = 1
C.  =  = 
D.  =  =  


Answer: B

Mathematics

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Use the rules for exponents to rewrite the expression and then evaluate the new expression. (72)-1 

A.
B. - 
C. -14
D. -49

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Supply the missing numbers. Round decimals to the nearest thousandth and percents to the nearest tenth of a percent.fractiondecimalpercent?0.032

A.   3.2
B.   0.32%
C.   3.2
D.   0.32

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Divide and, if possible, simplify. Assume all variables represent positive real numbers.

A. 2a3z7
B. 2a15z35
C. 2a10z30 
D. 2a15z35 

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Match the given equation with one of the graphs.y2 = 16 - x2

A.

B.

C.

D.

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