Simplify.(3y + 11) + (6y - 3)
A. 9y2 + 8
B. 9y - 8
C. 18y2 - 33
D. 9y + 8
Answer: D
Mathematics
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Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at 
and 
. The cross sections perpendicular to the x-axis between these planes are squares whose bases run from the semicircle 
to the semicircle 
.
A. 
B. 
C. 
D. 
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Evaluate the spherical coordinate integral.
A. 
?
B. 
C. 
D. 
?
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Use the shell method to find the volume of the solid generated by revolving the shaded region about the indicated axis.About the y-axis
A. 64?
B. 
?
C. 32?
D. 
?
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