Solve.Find the volume of the torus generated by revolving the circle (x - 9)2 + y2 = 1 about the y-axis.
A. 9?2
B. 18?2
C. 27?2
D. 36?2
Answer: B
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Match the system of inequalities with one of the graphs.
A. 
B. 
C. 
D. 
Solve.The number of board feet , N, that can be manufactured from a tree with a diameter of x inches and a length of y feet is modeled by the formula N = 
x2y - 2xy + 4y.Suppose that a lumber company has a fresh load of timber from 25 trees that averaged 14 inches in diameter and 17 feet in length. How many board feet of lumber can the company manufacture from this load of timber?
A. 425 board ft B. 10,625 board ft C. 73,100 board ft D. 14,787.5 board ft
Provide the requested information about the circular function.What is the domain of y = csc x?
A. x ? 
+ n?
B. x ? n?
C. (-?, ?)
D. [-1, 1]
Find the perimeter of the figure.
3
A. 6
B. 12
C. 12
D. 6