Answer:
c) 3x - 45 = 10
Step-by-step explanation:

Cross multiply,
3*(x - 15) = 2*5
3*x - 3*15 = 10
3x - 45 = 10
Answer:
h = 137.57 m
Step-by-step explanation:
Given that,
The angle of depression from the top of a cliff to a boat at sea is 17 degrees
The distance between the boat and the shore is 450 m, x = 450 m
We need to find the height of the cliff. Let the height be h. Using trigonometry to find it as follows :

So, the height of the cliff is 137.57 m.
X is 8.19 because you have to use pythogren therom