document.write( "Question 604828: If a rocket is propelled upward from ground level at 98 m/sec, its height in meters after t seconds is given by h=-4.9t+98t. During what interval of time will the rocket be higher than 445.9m? \n" ); document.write( "
Algebra.Com's Answer #381432 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! If a rocket is propelled upward from ground level at 98 m/sec, its height in meters after t seconds is given by h=-4.9t^2+98t. During what interval of time will the rocket be higher than 445.9m? \n" ); document.write( "--- \n" ); document.write( "Solve: \n" ); document.write( "-4.9t^2+98t-445.9 = 0 \n" ); document.write( "--- \n" ); document.write( "Ans: 7< t < 13 \n" ); document.write( "=================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |