document.write( "Question 1122298: Find the radii and coordinates of the center of the circles: (i) x^2 + y^2 - 10 = 0 (ii) 36x^2 + 36y^2 - 24x - 36y - 23 = o \n" ); document.write( "
Algebra.Com's Answer #738383 by Boreal(15235)\"\" \"About 
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rewrite the first as x^2+y^2=10
\n" ); document.write( "radius is sqrt (10)
\n" ); document.write( "center is (0, 0)\r
\n" ); document.write( "\n" ); document.write( "rewrite second as
\n" ); document.write( "36x^2-24x +36 Y^2-36y=23
\n" ); document.write( "divide by 36
\n" ); document.write( "x^2-(2/3)x+y^2-1=23
\n" ); document.write( "complete the square
\n" ); document.write( "(x-(1/3))^2+(y-(1/2))^2=23+(1/9)+(1/4)
\n" ); document.write( "center is (1/3, 1/2) and radius is sqrt(23 13/36) or sqrt (841/36)=29/6 or 4.8333\r
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