We have the following function

We want to know what is the value of f(x) when x is 19

If you have additional questions feel free to ask.
Hope this helps.
Answer:
D) 0 m/s
Step-by-step explanation:
At its highest point in its trajectory, the missle will change directions from going up to down
In order to achieve that, it must have a velocity of 0 m/s
Answer:
-104
Step-by-step explanation:
1) Substitute 50 into n.
-2(50) - 4
-100 - 4
-104
The answer is A if I am correct