document.write( "Question 823842: The diagonal of a rectangle is 15 inches and the area is 50 square inches. Find the dimensions of the rectangle, correct to one decimal place. \n" ); document.write( "
Algebra.Com's Answer #495898 by josgarithmetic(39630)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "The diagonal creates two triangles, each with legs x and y. Pythagorean theorem relationship gives \"highlight_green%28x%5E2%2By%5E2=15%5E2%29\", because the diagonal also becomes the hypotenuse of the two triangles.\r
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\n" ); document.write( "\n" ); document.write( "The given area permits the equation \"highlight_green%28xy=50%29\".\r
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\n" ); document.write( "\n" ); document.write( "Various ways to continue, but take the area equation and solve for either x or y; substitute into the pythagorean theorem equation and solve for the present variable; and then solve for the other using the area xy equation.\r
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\n" ); document.write( "\n" ); document.write( "To start, \"y=50%2Fx\";
\n" ); document.write( "\"x%5E2%2B%2850%2Fx%29%5E2=15%5E2\"
\n" ); document.write( "\"x%5E2%2B2500%2F%28x%5E2%29-15%5E2=0\"
\n" ); document.write( "You WILL need to deal with solving for \"x%5E2\" first!
\n" ); document.write( "Multiplying left and right by \"x%5E2\",
\n" ); document.write( "\"x%5E4%2B2500-15%5E2%2Ax%5E2=0\"
\n" ); document.write( "\"x%5E4-225x%5E2%2B2500=0\"
\n" ); document.write( "\"x%5E2=%28225%2Bsqrt%28225%5E2-4%2A2500%29%29%2F%282%29\"
\n" ); document.write( "\"x%5E2=%28225%2Bsqrt%2840625%29%29%2F%282%29\"
\n" ); document.write( "----note: 40625=25*1625=25*25*65-------
\n" ); document.write( "\"x%5E2=%28225%2B25%2Asqrt%2865%29%29%2F%282%29\"
\n" ); document.write( "..
\n" ); document.write( "Actually, \"x%5E2=%28225%2B201.556%29%2F%282%29\" OR \"x%5E2=%28225-201.556%29%2F%282%29\"
\n" ); document.write( "\"x%5E2=213.278\" OR \"x%5E2=11.722\"
\n" ); document.write( "Finishing the value for x,
\n" ); document.write( "\"highlight%28x=14.6%29\" OR \"highlight%28x=3.4%29\"------ not really comfortable with this level of accuracy expected, but you can recompute if you wanted this one.\r
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\n" ); document.write( "\n" ); document.write( "You can take care of the value of y.
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