Answer:
60 miles an hour
Step-by-step explanation:
^^^^^^^^
The lifeguard of the beach resort is on his post which is 4 m high. A boy in the pool is 9 meters away from him. Find the angle of depression from the lifeguard to the boy.
Therefore the angle of depression from the lifeguard to the boy is 24°.
It's -32x^2
5 6
x 4 6
_2576_____
_ _ _ 56 x _6__
+ _ _ _ _ 56 x _4__
__2576_____
_ _ _ _