document.write( "Question 809205: A tree is supported by a wire anchored in the ground 15 feet from its base. The wire is 4 feet longer than the height that it reaches on the tree. Find the length of the wire. \n" ); document.write( "
Algebra.Com's Answer #487444 by TimothyLamb(4379)\"\" \"About 
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b = 15
\n" ); document.write( "L = h + 4
\n" ); document.write( "h = L - 4
\n" ); document.write( "---
\n" ); document.write( "L = sqrt( bb + hh )
\n" ); document.write( "L = sqrt( 225 + (L - 4)(L - 4) )
\n" ); document.write( "LL = 225 + (L - 4)(L - 4)
\n" ); document.write( "LL = 225 + LL - 8L + 16
\n" ); document.write( "225 - 8L + 16 = 0
\n" ); document.write( "241 = 8L
\n" ); document.write( "Answer:
\n" ); document.write( "L = 30.125 feet
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