Step-by-step explanation:
while port types of interest is is a larger sum of brainly and it grows over time
He has to be 5 since 5×3=15 and each year he turns one year older so yea
$40/12 = unit rate simplify = 10/3
$10/3 per book
18 * 10/3 = $60 for 18 copies
Answer:
10701.97 feet.
Step-by-step explanation:
Refer the attached figure
The angle of elevation of a point, A, at the top of a cliff is 21° i.e. ∠ACB = 21°
The ship has sailed 2,500 feet directly toward the foot of the cliff i.e. CD = 2500 feet.
Then the angle of elevation becomes 47° i.e.∠ADB = 47°
Let BD be x
So, BC = BD+DC=x+2500
Let the height of the cliff be h feet.
In ΔABD
We will use trigonometric ratios



---a
In ΔABC
We will use trigonometric ratios




-----b
Equate a and b

Thus the height of the cliff is 10701.97 feet.