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9 July, 15:51

What is the center and radius of the circle with equation (x - 2) 2 + (y - 5) 2 = 100?

A. center (2, 5); radius = 10

B. center (-5, 2); radius = 10

C. center (-2, 5); radius = 100

D. center (2, - 5); radius = 100

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Answers (2)
  1. 9 July, 17:38
    0
    Hello,

    Center (2,5)

    Radius 10=√100

    Answer A
  2. 9 July, 19:02
    0
    (x - 2) ² + (y - 5) ² = 100

    (x - 2) ² + (y - 5) ² = 10²

    By the standard equation:

    (x - a) ² + (y - b) ² = r² Where center = (a, b), r = radius.

    Comparing with:

    Centre (a, b) = (2, 5) radius, r = 10

    A. center (2, 5); radius = 10
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