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Let c be the circle with equation x^2+12y+57=-y^2-10x. If (a,b) is the center of c and r is its radius, what is the value of A+B+R?

 Feb 7, 2022
 #1
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Completing the square, we get (x + 12)^2 + (y + 10)^2 = 49.  So a + b + r = (-12) + (-10) + 7 = -15.

 Feb 7, 2022
 #2
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sorry thats incorrect

Guest Feb 7, 2022

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