There is no attachment so we don’t know what this angle is.
Answer:
20, thats what is in your little box so that should be the answer
To help explain how you get A for the answer:
work backwards
5(3a²+11a-4)
multiply everything by 5
5×3a²=15a²
5×11a=55a
5×-4=-20
15a²+55a-20
Answer:
Option A. 37106 ft.
Step-by-step explanation:
Given: An 757 passenger jet at the height of 3900 feet from the ground means vertical height = 3900 feet.
Angle of descent to the airport in Washington,D.C. is 6 degrees.
To find: Horizontal distance the plane will cover to reach the run way.
Solution: As we know tan ∅ = 
Then tan 6° = 
0.105 = 
x = 
x = 37106 ft
Answer:
A. 2.8 billion years old
Step-by-step explanation:
1/16 = (1/2)^4, so 4 half-lives have elapsed.
4 · 0.700 billion years = 2.8 billion years
The rock is 2.8 billion years old.