document.write( "Question 24602: I don't understand what my teacher wants us to do. The question is find the radius of a circle with an are of 3.14(16x(sq)+24x+9) how would i figure this out? \n" ); document.write( "

Algebra.Com's Answer #13097 by josmiceli(19441) $\"\"$ $\"About$

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(1) $\"A+=+pi+%2A+r%5E2\"$ is the formula for the area of a circle
\n" ); document.write( "your teacher gave you:
\n" ); document.write( "(2) $\"A+=+pi+%2A+%2816%2Ax%5E2+%2B+24%2Ax+%2B+9%29\"$
\n" ); document.write( "so the terms in the parenthesis must represent $\"r%5E2\"$
\n" ); document.write( "if I find the square root of $\"r%5E2\"$ I'll have r
\n" ); document.write( " $\"%2816%2Ax%5E2+%2B+24%2Ax+%2B+9%29+=+%284%2Ax+%2B+3%29%5E2\"$
\n" ); document.write( " $\"sqrt%28%284%2Ax+%2B+3%29%5E2%29+=+4%2Ax+%2B3\"$
\n" ); document.write( "the square root can be + or - , but it makes sense to take the positive square root
\n" ); document.write( "so 4x + 3 is the radius \n" ); document.write( "

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