it is a because it is the line is in the spot we're it is ststop to go
Answer:
2.2
Step-by-step explanation:
I did it on khan
Check the picture below.
now, the "x" is a constant, the rocket is going up, so "y" is changing and so is the angle, but "x" is always just 15 feet from the observer. That matters because the derivative of a constant is zero.
now, those are the values when the rocket is 30 feet up above.
