document.write( "Question 964550: The height of a triangle is 9 meters less than its base. The area of the triangle is 56 m^2. Find the length of the base. \n" ); document.write( "

Algebra.Com's Answer #589492 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"A=%281%2F2%29bh\"$
\n" ); document.write( " $\"56=%281%2F2%29b%28b-9%29\"$
\n" ); document.write( " $\"b%5E2-9b=112\"$
\n" ); document.write( " $\"b%5E2-9b-112=0\"$
\n" ); document.write( " $\"%28b%2B7%29%28b-16%29=0\"$
\n" ); document.write( "Only positive solutions make sense here,
\n" ); document.write( " $\"b-16=0\"$
\n" ); document.write( " $\"b=16\"$
\n" ); document.write( "Then,
\n" ); document.write( " $\"h=16-9\"$
\n" ); document.write( " $\"h=7\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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