Find the center (h, k) and radius r of the circle with the given equation. x2 + y2 + 8x - 4y + 20 = 64

A. (h, k) = (-2, 4); r = 64
B. (h, k) = (-4, 2); r = 8
C. (h, k) = (2, -4); r = 8
D. (h, k) = (4, -2); r = 64


Answer: B

Mathematics

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