Subtract and simplify.
A. 15
B. 12
C. 14
D. 14
Answer: D
Mathematics
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the x-axis.x = 
ey2, y = 0, x = 0, y = 1
A. ?(e - 1)
B. 3?(e - 1)
C. 
(e - 1)
D. 
?e
Mathematics
Find the equation in standard form of the parabola described.The focus has coordinates (-21, 0), and the equation of the directrix is x = 21.
A. y2 = 84x B. y2 = -84x C. x2 = -84y D. y2 = -21x
Mathematics
Find an equation for the line with the given properties.Slope undefined; containing the point (3, -8)
A. x = -8 B. x = 3 C. y = -8 D. y = 3
Mathematics
Find the whole.192 hotels is 48% of what number of hotels?
A. 0.25 B. 400 C. 25 D. 4000
Mathematics