document.write( "Question 1013771: woody woodpecker pecked at a 17 meter wooden pole until it cracked and the upper part fell with the top hitting the ground 10m from the foot of the pole. since the upper part had not completely broken off, woody pecked away where the pole had cracked. how far was woody above the ground? \n" ); document.write( "

Algebra.Com's Answer #630057 by reelmccray(6) $\"\"$ $\"About$

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For triangles
\n" ); document.write( "A = Height
\n" ); document.write( "B = Base
\n" ); document.write( "C = Hypotenuse\r
\n" ); document.write( "\n" ); document.write( "A^2 + B^2 = C^2\r
\n" ); document.write( "\n" ); document.write( "In this case B = 10
\n" ); document.write( "A + C = 17 meters
\n" ); document.write( "Which can be written as:
\n" ); document.write( "A = -C + 17\r
\n" ); document.write( "\n" ); document.write( "Substitute (-C + 17) in A^2 + B^2 = C^2\r
\n" ); document.write( "\n" ); document.write( "(-C + 17)^2 + 10^2 = C^2
\n" ); document.write( "Use FOIL to figure out (-C + 17)^2
\n" ); document.write( "(C^2 - 34C + 289) + 100 = C^2
\n" ); document.write( "C^2 - 34C + 389 = C^2
\n" ); document.write( "34C = 389
\n" ); document.write( "C = 11.44\r
\n" ); document.write( "\n" ); document.write( "A + C = 17 so A + 11.44 = 17
\n" ); document.write( "A = 5.56 meter
\n" ); document.write( "Woody is 5.56 meters off the ground \n" ); document.write( "

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