Answer:
angle = 35 degrees
Step-by-step explanation:
The rocket traveled
5 miles in the x direction
3.5 miles in the y direction
The rocket was launched with a slope of
m =y/x = 3.5 miles / 5 miles = 0.7
The slope is equal to the tangent of the angle of elevation
tan (angle) = m
angle = tan^-1 (0.7)
angle = 34.99 ≈ 35 degrees