document.write( "Question 231209: Engine failure forced Robbin to Pilot be Cessna 150 to an emergency landing. To land, Robbins plane glided 17,000 ft over a 15,000-ft stretch of deserted highway. From what altitude did the decent begin?\r
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Algebra.Com's Answer #171189 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! You have a right triangle with an hypotenuse=17,000, a side=15,000 and an unknown height (the third side of the triangle). \n" ); document.write( "17,000^2=15,000^2+x^2 \n" ); document.write( "289,000,000=225,000,000+x^2 \n" ); document.write( "x^2=289,000,000-225,000,000 \n" ); document.write( "x^2=64,000,000 \n" ); document.write( "x=sqrt64,000,000 \n" ); document.write( "x=8,000 ft was the altitude when the pilot began his glide. \n" ); document.write( " \n" ); document.write( " |