Answer:
D
Step-by-step explanation:
The answer is B. 829 feet per second.
28 degrees
z and x are the same. Do the math.
x=pi*n/2+1/2arctan(7/5)
5sin(2x)=7cos(2x)
5tan(2x)=7/5
2x=pi*n+arctan(7/5)
x=pi*n/2+1/2arctan(7/5) for n e Z