SOLUTION: What is the diameter of the following circle: (x + 4)2 + (y – 9)2 = 18? I have an online math class and i have no idea how to do this. Thank you.

Algebra ->  Circles -> SOLUTION: What is the diameter of the following circle: (x + 4)2 + (y – 9)2 = 18? I have an online math class and i have no idea how to do this. Thank you.      Log On


   



Question 608420: What is the diameter of the following circle: (x + 4)2 + (y – 9)2 = 18?
I have an online math class and i have no idea how to do this. Thank you.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
What is the diameter of the following circle:
(x + 4)^2 + (y – 9)^2 = 18?
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Radius = sqrt(18) = 3*sqrt(2)
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Diameter = 2*radius = 6*sqrt(2)
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cheers,
Stan H.
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