document.write( "Question 1120740: A tennis ball is tossed vertically upward from a height of 5 metres according to the height equation\r
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document.write( "h= -16t^+21t+5,where h is the height of the tennis ball in metres and t is the time in second.\r
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document.write( "After how many seconds will the height be 11 meters? \n" );
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Algebra.Com's Answer #736405 by josgarithmetic(39617)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |