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. 
= 3?, 
= 3?
B. 
= 
?, 
= 
?
C. 
= 
?, 
= 
?
D. 
= 0, 
= 
?
Answer: B
Mathematics
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Solve.Employees at a tool and die company earn $13.58 per hour. The company pays time-and-a-half for hours over 40 per week. Sunday hours are paid at double time. How much would an employee earn if she worked the following hours: Monday, 7
; Tuesday, 9, Wednesday, 
; Thursday, 8; Friday, 7; Saturday, 6
; Sunday, 3? (Round to the nearest cent, if necessary.)
A. $801.73 B. $801.98 C. $802.84 D. $802.92
Mathematics
Divide.(8m2 + 30m - 8) ÷ (m + 4)
A. 8m - 2 + 
B. m - 2
C. 8m + 2
D. 8m - 2
Mathematics
Perform the indicated operation and simplify. Write the answer in the form a + bi.(4 - 9i)2
A. 97 - 72i B. 16 - 153i C. -65 - 72i D. 16 + 9i
Mathematics
Simplify the expression.5-3
A. 
B. -125
C. 125
D. 
Mathematics