document.write( "Question 1196168: An object is launched from ground level directly upward at a rate of 144
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document.write( "feet/sec. The equation for object’s height is
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document.write( "2
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document.write( "y x x = − + 16 144
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document.write( ". What values of x is the
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document.write( "object at or above a height of 288 feet? \n" );
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Algebra.Com's Answer #828881 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! An object is launched from ground level directly upward at a rate of 144 \n" ); document.write( "feet/sec. The equation for object’s height is \n" ); document.write( "2 \n" ); document.write( "y x x = − + 16 144 \n" ); document.write( ". What values of x is the \n" ); document.write( "object at or above a height of 288 feet? \n" ); document.write( "----------------- \n" ); document.write( "h(t) = -16t^2 + 144t is a usable equation. \n" ); document.write( "-16t^2 + 144t = 288 \n" ); document.write( "t^2 - 9t + 18 = 0 \n" ); document.write( "(t-3)*(t-6) = 0 \n" ); document.write( "t = 3 and t = 6 seconds \n" ); document.write( " \n" ); document.write( " |