Find the intervals over which the given function is increasing, is decreasing, or is constant.f(x) = 2x + 5
A. increasing on (-?, ?)
B. constant on (2, 5)
C. decreasing on (-?, 2/5); increasing on (2/5, ?)
D. decreasing on (-?, ?)
Answer: A
Mathematics
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Find an equation for the sphere with the given center and radius.Center (0, 0, 10), radius = 2
A. x2 + y2 + z2 + 20z = -96 B. x2 + y2 + 2 z2 - 20z = -96 C. x2 + y2 + 2 z2 + 20z = -96 D. x2 + y2 + z2 - 20z = -96
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Find the volume of the solid generated by revolving the shaded region about the given axis.About the y-axis
A. 3? + 3?2
B. 12 - 3?
C. 12? - 3?2
D. 6? - 
?2
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Write the numbers in numerical order, smallest to largest.9, -11, 23, -20, 1
A. -11, -20, 1, 9, 23 B. 23, 9, 1, -11, -20 C. 1, 9, 11, 20, 23 D. -20, -11, 1, 9, 23
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Perform the indicated operation and write the answer in lowest terms. 
? 10
A. 
B. 
C. 
D. 
Mathematics