document.write( "Question 45764: If a 12-foot portable ladder meets the side of a building 11.625 feet from the ground, the distance from the base of th eladder to the side of the building should be, most nearly____ feet? \n" ); document.write( "

Algebra.Com's Answer #30391 by tutorcecilia(2152) $\"\"$ $\"About$

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a^2 + b^2 = c^2 [Use the Pythagorean Theorem]
\n" ); document.write( "a=11.625
\n" ); document.write( "b=b
\n" ); document.write( "c=12
\n" ); document.write( ".
\n" ); document.write( "(11.625)^2 + b^2 = (12)^2
\n" ); document.write( "135.141 + b^2 = 144
\n" ); document.write( "135.141 - 144 = b^2
\n" ); document.write( "-8.859 = b^2 [Disregard the negative sign]
\n" ); document.write( " $\"sqrt%288.859%29+\"$ = $\"%28sqrt+%28b%5E2%29%29+\"$
\n" ); document.write( "2.976 = b [Final answer]
\n" ); document.write( ".
\n" ); document.write( "Check by plugging b=2.976 back into the original equation:
\n" ); document.write( "a^2 + b^2 = c^2
\n" ); document.write( "(11.625)^2 + (2.976)^2 = (12)^2
\n" ); document.write( "135.141 + 8.856 = 144
\n" ); document.write( "143.997 equivelent to 144 [Checks out]
\n" ); document.write( " \n" ); document.write( "

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