Specify the center and radius of the circle.x2 - 12x + y2 + 12y + 56 = 0
A. center: (6, -6); radius: 4
B. center: (-6, 6); radius: 16
C. center: (6, -6); radius: 16
D. center: (-6, 6); radius: 4
Answer: A
Mathematics
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Factor completely.y2 - 4y - 21
A. (y + 3)(y - 7) B. (y - 21)(y + 1) C. (y - 3)(y + 7) D. (y - 3)(y - 7)
Mathematics
Find the approximate annual percentage rate using the approximate annual percentage rate formula. Round to the nearest tenth of a percent.Amount financed: $300Finance charge: $50Number of monthly payments: 24
A. 16.7% B. 16.0% C. 17.4% D. 14.8%
Mathematics
Solve.The sediment on the bottom of a creek is normally 20 cm thick, but a recent flood washed away 
of sediment. How thick is it now?
A. 10 cm B. 190 cm C. 19.9 cm D. 19 cm
Mathematics
Add.
+ 17
A. -37 B. 3 C. 37 D. -3
Mathematics