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.
Answer:
t = -25
Step-by-step explanation:
Divide both sides by -7 so that the variable x could be on its own
-7/-7 t = 175/-7
t = -25
Answer:
Step-by-step explanation:
First, subtract 8
4x+8=180
-8 -8
4x=172
Divide 4 and 172
x=43
:)
Answer: 98.9
Step-by-step explanation:
Round up if this number is greater than or equal to 5 and round down if it is less than 5. 98.9