Answer:
14+21
Step-by-step explanation:
because, 14+21 =35
21 is 7 more bigger than 14
A = 11/5, let me know if you need me to tell you how i got it (show my work)
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.
2x=18y
divide 2
x=9y
9y=x
divide by 9
y=1/9x
k=1/9
2 7/8 = 23/8
2 1/4 = 9/4
23/8 / 9/4 =
23/8 * 4/9 = 92/72 = 1 20/72 = 1 5/18