Find an equation of the circle satisfying the given conditions.Center at (-2, 8), passing through (7, -2)
A. (x - 2)2 + (y + 8)2 = 1
B. (x + 2)2 + (y - 8)2 = 181
C. (x + 2)2 + (y - 7)2 = 1
D. (x - 2)2 + (y + 7)2 = 61
Answer: B
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Solve.A rectangular box with volume 517 cubic feet is built with a square base and top. The cost is $1.50 per square foot for the top and the bottom and $2.00 per square foot for the sides. Let x represent the length of a side of the base in feet. Express the cost of the box as a function of x and then graph this function. From the graph find the value of x, to the nearest hundredth of a foot, which will minimize the cost of the box.
A. 8.79 feet B. 8.83 feet C. 8.91 feet D. 8.49 feet
Solve the problem.A right circular cylinder is obtained by revolving the region enclosed by the line x = r, the x-axis, and the line 
about the y-axis. Find the volume of the cylinder.
A. ?rh2 B. ?rh C. 2?r2h D. ?r2h
Find the mean.72, 41, 72, 91, 41
A. 62.9 B. 63.9 C. 63.4 D. 79.3
Add or subtract as indicated.(x3y2 - 5x2y3 - 2xy - 4) + (x2y3 - 5x3y2 - 4xy - 5)
A. -4x3y2 - 4x2y3 - 2xy - 9 B. 2x3y2 - 10x2y3 - 6xy - 9 C. -6x3y2 - 4x2y3 - 6xy - 9 D. -4x3y2 - 4x2y3 - 6xy - 9