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29 July, 05:18

What is the radius of a circle with the equation x^2 + y^2 + 4x + 8y-10=0

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Answers (2)
  1. 29 July, 06:01
    0
    Answer: 5.477
  2. 29 July, 09:12
    0
    Answer:√30

    Step-by-step explanation:

    2g=4

    g=4/2

    g=2

    2f=8

    f=8/2

    f=4

    c=-10

    Radius=√ (g^2+f^2-c)

    Radius=√ (2^2+4^2 - (-10))

    Radius=√ (4+16+10)

    Radius=√ (30)
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