document.write( "Question 536928: In the xy-coordinate plane, circle A is centered at the origin and has a radius of 5. For how many points on circle A is the sum of the x coordinate squared and the y coordinate squared greater than 20?\r
\n" ); document.write( "\n" ); document.write( "a) 0
\n" ); document.write( "b) 4
\n" ); document.write( "c) 5
\n" ); document.write( "d) 8
\n" ); document.write( "e) more than 8
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #352642 by richard1234(7193) $\"\"$ $\"About$

You can put this solution on YOUR website!
We want

where

is the set of all points on A. Hence, all of the points on circle A satisfy (infinitely many points) so the answer is e). \n" ); document.write( "

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