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8 March, 02:18

The equation of a circle is shown

x^2 + y^2 - 10x + 8y + 16 = 0

What is the radius of the circle?

A. 5

B. 25

C. - 25

D. - 5

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Answers (1)
  1. 8 March, 03:02
    0
    The center of the circle is found at (h, k)

    Center: (5,4) These values represent the important values for graphing and analyzing a circle.

    Center: (5,4) Radius: 2

    so your answer is A 5
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