Rewrite the equation in standard form. Find the center and radius of the circle.x2 + y2 + 10x + 8y - 163 = 0
A. (x + 10)2 + (y + 8)2 = 1
center (-10, -8), r = 1
B. (x - 10)2 + (y - 8)2 = 1
center (10, 8), r = 1
C. (x + 10)2 + (y + 8)2 = 1
center (10, 8), r = 1
D. (x - 10)2 + (y - 8)2 = 1
center (-10, -8), r = 1
Answer: A
Mathematics
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+ 
A. 
B. 
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Mathematics