document.write( "Question 49206: Please help me with this...I can not figure this out. \r
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document.write( "Science and medicine: The equation h= -16t^2 +112t gives the height of an arrow, shot upward from the ground with and initial velocity of 112 ft/s, where t is the time after the arrow leaves the ground. Find the time it takes for the arrow to reach height of 180 ft. \n" );
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Algebra.Com's Answer #32652 by tutorcecilia(2152)![]() ![]() You can put this solution on YOUR website! h= -16t^2 +112t \n" ); document.write( " 180=-16t^2 +112t \n" ); document.write( " 180-180 = -16t^2 +112t -180 \n" ); document.write( " -16t^2 +112t -180 = 0 \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "t = 2.5 or t = 4.5 \n" ); document.write( " |