document.write( "Question 758142: what is the center of this circle? As you have
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Algebra.Com's Answer #461394 by Cromlix(4381)\"\" \"About 
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The standard equation for the circle is:
\n" ); document.write( "(x - a)^2 + (y - b)^2 = r^2
\n" ); document.write( "As you have:(x+5)2 + (y-10)2 = 121
\n" ); document.write( "Then the centre will be (-5, 10)
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