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suppose this firework is set to explode 3 seconds after it is launched. at what height will this firework be when it explodes?
my equation is h(t)=-16t^2+120t+20

how do i do this?

36 inches/second = yards/minute how many yards?

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%

True or false? a circle could be circumscribed about the quadrilateral below.