Solve.
- 
= 
A. -7
B. 30
C. 7
D. No solution
Answer: C
Mathematics
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Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = - 1 and x = 1. The cross sections perpendicular to the x-axis are semicircles whose diameters run from 
to 
A. 
?
B. 
?
C. 
?
D. 
?
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Solve the equation.(y - 7) - (y + 2) = 3y
A. 
B. 
C. 
D. 
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics
Determine whether the graph shown is the graph of a polynomial function.
A. polynomial function B. not a polynomial function
Mathematics