document.write( "Question 816341: A rectangle is drawn so the width is 71 inches longer than the height. If the rectangle's diagonal measurement is 85 inches, find the height.\r
\n" ); document.write( "\n" ); document.write( "Give your answer rounded to 1 decimal place.
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Algebra.Com's Answer #491501 by TimothyLamb(4379)\"\" \"About 
You can put this solution on YOUR website!
w = h + 71
\n" ); document.write( "d = 85 = sqrt( ww + hh )
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\n" ); document.write( "85 = sqrt( ww + hh )
\n" ); document.write( "85^2 = ww + hh
\n" ); document.write( "85^2 = (h + 71)(h + 71) + hh
\n" ); document.write( "85^2 = hh + 142h + 71^2 + hh
\n" ); document.write( "2h^2 + 142h + 71^2 - 85^2 = 0
\n" ); document.write( "2h^2 + 142h - 2184 = 0
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\n" ); document.write( "the above quadratic equation is in standard form, with a=2, b=142, and c=-2184
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\n" ); document.write( "to solve the quadratic equation, plug this:
\n" ); document.write( "2 142 -2184
\n" ); document.write( "into this: https://sooeet.com/math/quadratic-equation-solver.php
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\n" ); document.write( "the roots of the quadratic are:
\n" ); document.write( "h = 13
\n" ); document.write( "h = -84
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\n" ); document.write( "the negative root doesn't make sense for a length, so use the positive root
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\n" ); document.write( "Answer:
\n" ); document.write( "h = 13 in
\n" ); document.write( "w = 84 in
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\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
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\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
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\n" ); document.write( "Convert fractions, decimals, and percents:
\n" ); document.write( "https://sooeet.com/math/fraction-decimal-percent.php
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\n" ); document.write( "Calculate and graph the linear regression of any data set:
\n" ); document.write( "https://sooeet.com/math/linear-regression.php
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