Find the equation of a circle satisfying the given conditions.Center: (0, -8); radius: 
A. (x + 8)2 + y2 = 225
B. x2 + (y + 8)2 = 15
C. (x - 8)2 + y2 = 225
D. x2 + (y - 8)2 = 15
Answer: B
Mathematics
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C.
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D.
?for any natural number n > 1, 
E.
?for any natural number n > 1, 
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Evaluate or simplify the given expression.cos(2 cos-1 x)
A. 1 B. 2x2 - 1 C. 2x2 + 1 D. -1
Mathematics
Perform the division.
A. -4 + 
B. -4 - 
C. 5 + 
D. -2 + 8n
Mathematics
Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.A movie theater charges $8.00 for adults and $5.00 for children. If there were 40 people altogether and the theater collected $272.00 at the end of the day, how many of them were adults?
A. 16 adults B. 10 adults C. 24 adults D. 29 adults
Mathematics