Give the center and radius of the circle. Then sketch its graph.(x - 1)2 + (y + 2)2 = 16
A. center (1, 2), r = 4
B. center (1, - 2), r = 4
C. center (- 1, - 2), r = 4
D. center (- 1, 2), r = 4
Answer: B
Mathematics
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Solve the equation.
- 
= 6
A. 6
B. 
C. 
D. 
Mathematics
Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = -2 and x = 2. The cross sections perpendicular to the x-axis are circles whose diameters stretch from the curve 
to the curve 
A. 
?2
B. 
?2
C. 81?
D. 81?2
Mathematics
Solve. The area of a rectangle is 12m2 - 10m - 12. Find the length if the width is 2m - 3.
A. 12m + 4 B. 6m + 4 C. 6m - 4 D. 12m - 4
Mathematics
Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = 2cos (?x), y = 2, x = -0.5, x = 0.5
A. 8?
B. 4?
C. 
?
D. 2?
Mathematics