Rewrite the equation in standard form. Find the center and radius of the circle.x2 + y2 - 16x + 15 = 0
A. x2 + (y - 8)2 = 49
center (0, 8), r = 7
B. (x - 8)2 + y2 = 49
center (-8, 0), r = 7
C. (x + 8)2 + y2 = 49
center (-8, 0), r = 7
D. (x - 8)2 + y2 = 49
center (8, 0), r = 7
Answer: D
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Solve the problem.A pendulum is released and swings until it stops. If it passes through an arc of 25 inches the first pass, and if on each successive pass it travels 
the distance of the preceding pass, how far will it travel before stopping?
A. 100 in. B. 225 in. C. 150 in. D. 125 in.
Perform the indicated operation.(5n7 - 14n5 - 10) - (-10n5 + 7n7 - 2)
A. -2n7 - 7n5 - 12 B. -2n7 - 4n5 - 12 C. -2n7 - 4n5 - 8 D. -14n12
If f is an exponential function with growth factor 
, then f satisfies the equation of change 
.
Answer the following statement true (T) or false (F)
Find the following. Assume that the letter can represent any real number.
A. 
- 7
B. 
- 7
C. (z - 7)2
D. 