document.write( "Question 253919: What is the value of c in the formula c+square root 2a2 + b2, if a=4 and b=5?\r
\n" ); document.write( "\n" ); document.write( "Thank you for your help. Darrell
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Algebra.Com's Answer #186264 by drk(1908)\"\" \"About 
You can put this solution on YOUR website!
I assume you mean the following question:
\n" ); document.write( "\"c+=+sqrt%282a%5E2+%2B+b%5E2%29\", if a=4 and b=5.
\n" ); document.write( "Substituting, we get
\n" ); document.write( "\"c+=+sqrt%282%2A4%5E2+%2B+5%5E2%29\"
\n" ); document.write( "\"c+=+sqrt%2857%29\"
\n" ); document.write( "c ~ 7.55
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