shunterica63 shunterica63

14-07-2016
Mathematics

contestada

What are the center and radius of the circle described by the equation (x + 9)2 + (y + 4)2 = 36?

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konrad509 konrad509

14-07-2016

[tex](x-h)^2+(y-k)^2=r^2\\ (h,k) - \text{center}\\\\ (x+9)^2+(y+4)^2=36\\ \text{center}=(-9,-4)\\ r=\sqrt{36}=6[/tex]

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