Perform the indicated operation.-224 ÷ (-8)
A. 28
B. -28
C. 18
D. 
Answer: A
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Solve the problem by integration.An electrical insulating ring for a machine part can be described as the volume generated by revolving the area bounded by 
and 
about the the y-axis. Find the volume (in cm3) of material in the ring.
A. 54 cm3 B. 52 cm3 C. 10 cm3 D. 11 cm3
Determine the average rate of change for the function.F(x) = -7
A. 7
B. 0
C. - 
D. -7
Refer to the figure in which O is the center of the circle, 
is a tangent, m?PCE = 20° m?Boc = 80°, PE = 10 ft, PD = 12 ft, ER= 4 ft, and BR= 5 ft.
Find m?PAR.
Solve the problem.Assume that the elevation E, in feet, of a sag in a proposed route is given by 
where x represents the horizontal distance in feet along the proposed route and 0 ? x ? 5000. For what x-values is the elevation 1300 feet or more? Round your answer to the nearest foot.
A. x < 617 ft or x > 9697 ft B. x < 607 ft or x > 9687 ft C. x < 607 ft or x > 9697 ft D. x < 617 ft or x > 9687 ft