Answer: 27 ft
Step-by-step explanation:
Given
the angle of elevation is 
Length of track is 
Vertical rise is given by

Answer:
It is open if it is greater or less than >
It is closed if it is greater than or equal to or less than or equal to > (but with the line underneath it)
Step-by-step explanation:
Answer:
Find the smallest multiple the denominators have in common
30
Expand each fraction so that the denominators are 30

Add or subtract the numerators and keep the same denominator

Simplify

Answer:
13680
Step-by-step explanation:
(thank youuu)
Its D, incenter is the incircle of a triangle or other figure.