Simplify.
A. 
B. - 
C. 
D. 
Answer: D
Mathematics
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Find the center and the radius of the circle.y2 + 20y + 100 = 6x - x2 + 7
A. (3, 12); r = 7 B. (3, 11); r = 5 C. (2, 10); r = 6 D. (3, -10); r = 4
Mathematics
Simplify the absolute value expression.|-12|
A. 12 B. 24 C. -12 D. 0
Mathematics
Solve the problem.Suppose a pyramid has a rectangular base whose width is 2 centimeters less than its length. If the height is 3 centimeters and the volume is 15 cubic centimeters, find the length of the base. 
A. 3 cm B. 2 cm C. 15 cm D. 5 cm
Mathematics
Evaluate.
- 
A. - 
B. - 
C. 
D. 
Mathematics