Answer:
a) 12 ( I'm pretty sure)
Step-by-step explanation:
Answer:
-3
Step-by-step explanation:
or -3x if youre writing an equation
Answer:
Height of the cliff = 13.66 m
Step-by-step explanation:
Let the height of the cliff is 'x' m and distance between the base of the cliff and the boat is 'y' m.
From right triangle AOC,
tan 30° = 

y =
------(1)
From right angle triangle BOC,
tan 45° = 

x = y - 10
y = x + 10 -------(2)
From equations (1) and (2),



x = 13.66 m
Therefore, height of the cliff is 13.66 m.
36-39/12-5
31-39/12
31-3.25
27.75