document.write( "Question 209816: I'm having a lot of trouble with this one:\r
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document.write( "The angle of elevation of a 15 ft ladder is 70 degrees. Find out how far the base of the ladder is from the wall. \n" );
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Algebra.Com's Answer #158592 by RAY100(1637) ![]() You can put this solution on YOUR website! A rough sketch might help \n" ); document.write( ". \n" ); document.write( "It is a right triangle, with hypotenuse = 15, and one angle =70 deg \n" ); document.write( ". \n" ); document.write( "Let the distance to the wall be x \n" ); document.write( ". \n" ); document.write( "the trig function is adjacent / hyp or cos \n" ); document.write( ". \n" ); document.write( "therefore,,,,cos 70 = x/15,,,or x=15 cos 70 = 5.13 \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( "check. cos 70 = 5.13 / 15 = .3420,,,,ok \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( " |