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Mathematics 7 Online
OpenStudy (anonymous):

Find the center and radius of x2 + y2 + 2x - 10y + 10 = 0 A.center (1, - 5); r = 16 B.center (1, -5); r = 4 C.center (-1, 5); r = 16 D.center (-1, 5); r= 4

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