The answer to this question is B.37 cause its an isosceles triangle so two of the sides have to be congruent where the other side is not therefore the side of the missing angle is 37.
Refer to the diagram shown below.
Let the ship approach the lighthouse at a constant speed of v km/h.
When the angle of elevation is 0.005 radians,
tan(0.005) = 30/(x + y)
x + y = 30/tan(0.005) = 6000 m (1)
When the angle of elevation is 0.1 radian,
tan(0.1) = 30/x
x = 30/tan(0.1) = 299 m
From (1), obtain
y = 6000 - 299 = 5701 m = 5.701 km
The ship travels 5701 m in 10 minutes. It's speed is
v = (5.701 km)/(1/6 h) = 34.2 km/h
Answer: The ship is traveling at 34.2 km/h.
Answer:
7 rpm = 0.73 rad/s
Step-by-step explanation:
R = Radius of merry-go-round = 1.8 m
= Moment of inertia of merry-go-round = 255 kg m²
= Moment of inertia of child
ω = 9 rev/min
m = Mass of child = 24 kg
From the conservation of angular momentum

∴ New angular speed of the merry-go-round is 7 rpm = 
Answer:
2y + 12
Step-by-step explanation: