SOLUTION: Fireworks are launched over a lake off a dam 28ft above water. The height of the display, t seconds after it has been launched, is given by h(t)=-16t^2+48t+28. After how long will

Question 861336: Fireworks are launched over a lake off a dam 28ft above water. The height of the display, t seconds after it has been launched, is given by h(t)=-16t^2+48t+28.
After how long will the shell from the fireworks reach the water?
Answer by fcabanski(1391) (Show Source): You can put this solution on YOUR website!

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