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17 October, 22:32

Find the center and radius of the circle.

(x - 5) 2 + (y - 7) 2 = 81

Center: (

Radius:

+3
Answers (1)
  1. 17 October, 23:32
    0
    Center (5,7) radius: 9

    Step-by-step explanation:

    The standard equation of a circle is

    (x-h) ^2 + (y-k) ^2=r^2

    where the center is (h, k) and r is the radius

    so in this case h is 5 k is 7

    and r^2=81 so r=9
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