document.write( "Question 265972: Solve the formula for the given letter.Assume all variables represent nonegative numbers.\r
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Algebra.Com's Answer #195467 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "\"a%5E2%2Bk%5E2=f%5E2\", for \"a\"\r\n" );
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document.write( "Add \"-k%5E2\" to both sides:\r\n" );
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document.write( "\"a%5E2=f%5E2-k%5E2\".\r\n" );
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document.write( "Take the positive square root of both sides:\r\n" );
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document.write( "\"sqrt%28a%5E2%29=sqrt%28f%5E2-k%5E2%29\"\r\n" );
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document.write( "\"a=sqrt%28f%5E2-k%5E2%29\" \r\n" );
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document.write( "Edwin
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