document.write( "Question 1002781: A rocket is launched from the top of a cliff that is 80 feet high with an initial velocity of 80 feet per second. The height, h(t), of the rocket after t seconds is given by the equation....\r \n" );
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document.write( " h(t)=-16t^2 + 80t + 80\r \n" );
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document.write( "How long after the rocket is launched will it strike the ground? Round to the nearest tenth of a second, if necessary. \n" );
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