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OpenStudy (anonymous):
Find the center and the radius of the circle x^2+y^2-12x+6y=19
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OpenStudy (amistre64):
wolfram it :)
OpenStudy (anonymous):
?
OpenStudy (anonymous):
x^2+y^2-12x+6y+36-36+9-9=19 x^2-12x+36 +y^2+6y+9=19+45 (x-6)^2 +(y+3)^2 =64=8^2 Centre = (6,-3) Radius =8
OpenStudy (anonymous):
Oh thanks! :D
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OpenStudy (anonymous):
Welcome!
OpenStudy (amistre64):
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