document.write( "Question 769511: can someone help me please solve this quadratic formula\r
\n" ); document.write( "\n" ); document.write( " You are driving along the highway when suddenly a large box falls off of a truck in front of you and dumps metal parts all over the roadway. You hit the brakes and decelerate as fast as you can. The distance D in feet that your car travels before you stop is related to your initial speed S by an equation like D = S^2 / 9. Find the initial speed S that corresponds to a stopping distance of 200 feet.
\n" ); document.write( "Speed in mph (positive answer only, nearest integer):
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Algebra.Com's Answer #468899 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
\"+D+=+s%5E2+%2F+9+\"
\n" ); document.write( "\"+200+=+S%5E2+%2F+9+\"
\n" ); document.write( "\"+S%5E2+=+1800+\"
\n" ); document.write( "\"+S%5E2+=+900%2A2+\"
\n" ); document.write( "\"+S+=+30%2Asqrt%282%29+\"
\n" ); document.write( "\"+S+=+30%2A1.414+\"
\n" ); document.write( "\"+S+=+42.42+\"
\n" ); document.write( "The initial speed is 42 mi/hr
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