document.write( "Question 781985: i need to find the perimeter of a right triangle with the base of X+2 the height is X+9 the hypotenuse is X+10 \n" ); document.write( "

Algebra.Com's Answer #476196 by Menjax(62) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"Perimeter=%28x%2B9%29%2B%28x%2B2%29%2B%28x%2B10%29\"$
\n" ); document.write( "Using Pythagorean theorem
\n" ); document.write( " $\"%28x%2B9%29%5E2%2B%28x%2B2%29%5E2=%28x%2B10%29%5E2\"$
\n" ); document.write( "Expanding
\n" ); document.write( " $\"%28x%5E2%2B18x%2B81%29%2B%28x%5E2%2B4x%2B4%29=%28x%5E2%2B20x%2B100%29\"$
\n" ); document.write( "simplified
\n" ); document.write( " $\"x%5E2%2B2x-15=0\"$
\n" ); document.write( "using quadratic formula
\n" ); document.write( " $\"x=+-5\"$ $\"or+\"$ $\"x=3\"$
\n" ); document.write( "If x is -5 than the base would be -3 and you can't have a negative distance...
\n" ); document.write( "So $\"x=3\"$
\n" ); document.write( " \n" ); document.write( "

\n" );