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 = 32 - x2 and y = x2, with density ?(x) = x2
A. 
= 0, 
= 16
B. 
= 0, 
= 32
C. 
= 0, 
= 
D. 
= 16, 
= 0
Answer: A
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Solve the equation.
= ?s - 1?
A. ?
B. {6, 
}
C. {- 6}
D. {- 6, - 
}
Graph the pair of parametric equations with the aid of a graphing calculator.x = 6 cos t + 2 cos 3t, y = 6 sin t - 2 sin3t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
Solve the problem.Dombro Construction Company needs to cut an arch for the top of a doorway. The arch needs to be 6 feet wide and 2 feet high. The arch will be a section of a circle, drawn using a stretched string with a pencil attached at the end as a compass. Using the coordinate system as shown in the drawing, find the y-coordinate of the point on the y-axis that would be the center of the circle. Round to the hundredths place.
?a = 3
A. -1.25 B. 1.09 C. 12.5 D. 1.39
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A. 209.047 B. 208.997 C. 209.097 D. 209.037