document.write( "Question 1134725: An extendable ladder 9.8 feet long leans against a wall with the base 3 feet from the wall. Assuming the base of the ladder does not move, about how much higher will the top of the ladder be above the ground when the ladder extended to twice its original length? \n" ); document.write( "

Algebra.Com's Answer #752189 by josgarithmetic(39617) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"y%5B1%5D\"$ , the first distance up the wall\r
\n" ); document.write( "\n" ); document.write( " $\"y%5B2%5D\"$ , the extended distance up the wall\r
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\n" ); document.write( "\n" ); document.write( " $\"system%28y%5B1%5D=sqrt%289.8%5E2-9%29%2Cy%5B2%5D=sqrt%2819.6%5E2-9%29%29\"$
\n" ); document.write( "and you want $\"y%5B2%5D-y%5B1%5D\"$ . \n" ); document.write( "

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