# Can someone please explain how to do this problem?

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Cadets graduating from military school usually toss their hats high into the air at the end of the ceremony. One cadet threw his hat so that its distance *d*( *t* )= #-16t^2# + 30t + 6.

a. Find the distance above the ground of the hat 1 second after it was thrown.

b. Find the time it took that hat to hit the ground. Give the exact time and a one-decimal-place approximation.

Cadets graduating from military school usually toss their hats high into the air at the end of the ceremony. One cadet threw his hat so that its distance *d*( *t* )=

a. Find the distance above the ground of the hat 1 second after it was thrown.

b. Find the time it took that hat to hit the ground. Give the exact time and a one-decimal-place approximation.

##### 1 Answer

#### Answer

#### Answer:

#### Explanation

#### Explanation:

#### Answer:

a.

b.

#### Explanation:

To find the height you only have to substitute

and to find the time it took the hat to hit the ground you need to think a bit. If the hat is in the ground it means that de height is

we can use the formula for quadratics equations.

This solution is not possible because time can't be negative.

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