Find the center and radius of the circle with the given equation. x2 + y2 - 14x - 16y = -49
A. Center (-8, -7), r = 64
B. Center (8, 7), r = 8
C. Center (7, 8), r = 8
D. Center (-7, -8), r = 64
Answer: C
Mathematics
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Perform the indicated operation. Write the answer in scientific notation.(5.1 × 104) × (3.9 x 103)
A. 2.0 × 10-8 B. 1.989 × 108 C. 1.989 × 1012 D. 1.989 × 104
Mathematics
(2.62 × 103) × (4.7 × 10-1) = _____ . (Give your answer in correct scientific notation)
A. 1231.4 B. 12.314 C. 12.314 × 102 D. 1.2314 × 103
Mathematics
Provide an appropriate response.The random variable X has density function f(x) = 
Find the cumulative distribution function F over 
.
What will be an ideal response?
Mathematics
Simplify.(84 ? 53)-4
A. 87 ? 57
B. 
C. 816 ? 512
D. 
Mathematics