document.write( "Question 820697: How to draw a rectangle with an area of 5 square units and a perimeter of 21 units? \n" ); document.write( "
Algebra.Com's Answer #493675 by TimothyLamb(4379)\"\" \"About 
You can put this solution on YOUR website!
xy = 5
\n" ); document.write( "2x + 2y = 21
\n" ); document.write( "2x = 21 - 2y
\n" ); document.write( "x = 21/2 - y
\n" ); document.write( "---
\n" ); document.write( "xy = 5
\n" ); document.write( "(10.5 - y)y = 5
\n" ); document.write( "(10.5)y - yy - 5 = 0
\n" ); document.write( "-yy + 10.5y - 5 = 0
\n" ); document.write( "---
\n" ); document.write( "the above quadratic equation is in standard form, with a=-1, b=10.5, and c=-5
\n" ); document.write( "---
\n" ); document.write( "to solve the quadratic equation, by using the quadratic formula, copy and paste this:
\n" ); document.write( "-1 10.5 -5
\n" ); document.write( "into this solver: https://sooeet.com/math/quadratic-equation-solver.php
\n" ); document.write( "---
\n" ); document.write( "the two real roots (i.e. the two x-intercepts), of the quadratic are:
\n" ); document.write( "x = 0.5
\n" ); document.write( "x = 10
\n" ); document.write( "---
\n" ); document.write( "answer:
\n" ); document.write( "length = 10 units
\n" ); document.write( "width = 1/2 unit
\n" ); document.write( "---
\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
\n" ); document.write( "---
\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
\n" ); document.write( "---
\n" ); document.write( "Solve systems of linear equations up to 6-equations 6-variables:
\n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php \n" ); document.write( "
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