# The height of a flare fired from the deck of a ship in distress can be modeled by #h= - 16t^2+ 104t+ 56#, where #h# is the height in feet of the flare above water and #t# is the time in seconds. What is the time it takes the flare to hit the water?

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Jan 11, 2017

#### Answer:

t = 7 seconds

#### Explanation:

The flare hit the water when

divide the equation by 8,

since unit of time cannot be a -ve value, therefore t, time the flare hit the water is at 7s

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