document.write( "Question 366780: What is the sum of the coordinates of the center of the circle whose equation is\r
\n" ); document.write( "\n" ); document.write( "x^2 + y^2 - 6x - 10y + 30 = 0 ? \n" ); document.write( "

Algebra.Com's Answer #261459 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi, 
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document.write( "The standard equation of a circle with center C(h,k) and radius r is :
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document.write( "x^2 + y^2 - 6x - 10y + 30 = 0
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document.write( "x^2 -6x + 9 + y^2 -10y +25 + 30 -9 -25 = 0
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document.write( "(x^2 -6x + 9) + (y^2 -10y +25) + (30 -9 -25) = 0
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document.write( "(x-3)^2 + (y-5)^2 -4 = 0
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document.write( "(x-3)^2 + (y-5)^2 = 2^2
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document.write( "sum of the coordinates(3,5) of the center of the circle
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document.write( "3 + 5 = 8 \n" );
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