document.write( "Question 213061: The width of a rectangle is 9 less than twice its length. If the area of the rectangle is 100 centimeters squared, what is the length of the diagonal?
\n" ); document.write( "So far i have this:\r
\n" ); document.write( "\n" ); document.write( "W= 2L-9
\n" ); document.write( "L= ?\r
\n" ); document.write( "\n" ); document.write( "L(2L-9)=100
\n" ); document.write( "2L^2-9L-100=0 \r
\n" ); document.write( "\n" ); document.write( "I tried to factor it and used the quadratic formula and I still couldn't get answer.
\n" ); document.write( "Please help. Thank you! \n" ); document.write( "
Algebra.Com's Answer #160948 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
The width of a rectangle is 9 less than twice its length. If the area of the rectangle is 100 centimeters squared, what is the length of the diagonal?
\n" ); document.write( "So far i have this:
\n" ); document.write( "width = W= 2L-9
\n" ); document.write( "length = L
\n" ); document.write( "L(2L-9)=100
\n" ); document.write( "2L^2-9L-100=0
\n" ); document.write( "L = [9 +- sqrt(81 - 4*2*-100)]/4
\n" ); document.write( "---
\n" ); document.write( "L = [9 +- sqrt(881)]/4
\n" ); document.write( "Positive solution:
\n" ); document.write( "L = [9 + 29.68]/4
\n" ); document.write( "Length = 9.67 cm
\n" ); document.write( "Width = 2(9.67)-9 = 10.34
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( " \n" ); document.write( "
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