In a school day each student has to participate either in music or sport . Out of 350 students of the school 250 participated in
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Check the picture below.
thus is at 0 = -16t² + 96t +640,
well, clearly it can't be a negative value for the elapsed seconds, so it can't be -4.
thus is at 0 = -16t² + 96t +640,
well, clearly it can't be a negative value for the elapsed seconds, so it can't be -4.