document.write( "Question 246081: How would you solve the equation w = Cr^-2 for the variable r? \n" ); document.write( "

Algebra.Com's Answer #179726 by Earlsdon(6294) $\"\"$ $\"About$

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Solve for r:
\n" ); document.write( " $\"w+=+Cr%5E%28-2%29\"$ Rewrite this with a positive exponent for r.
\n" ); document.write( " $\"w+=+C%2Fr%5E2\"$ Multiply both sides by $\"r%5E2\"$ .
\n" ); document.write( " $\"w%2Ar%5E2+=+C\"$ Divide both sides by w.
\n" ); document.write( " $\"r%5E2+=+C%2Fw\"$ Finally, take the square root of both sides.
\n" ); document.write( " $\"r+=+sqrt%28C%2Fw%29\"$ \n" ); document.write( "

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