SOLUTION: What is the radius of the circle (x - 1)2 + (y + 1)2 = 12?

SOLUTION: What is the radius of the circle (x - 1)2 + (y + 1)2 = 12?

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Question 461357: What is the radius of the circle (x - 1)2 + (y + 1)2 = 12?

Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
The 12 corresponds to r^2, so r is equal to

or

.
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