Answer:
By using pythagoras theorem the problem can be solved;
(hypotenuse)^2=(pythagoras)^2+(base)^2
h^2=(20 mi)^2+(40 mi)^2
h^2=(400+1600) mi^2
h^2=2000 mi^2
h=√2000 mi^2
h=20√5 mi
Step-by-step explanation:
The +7 is the y-intercept
It is where the line starts in your example and is 7 units away from 0
Since the line is decreasing the 3 is negative
Value y = 22
sin60 = y/25
y = sin60(25)
y = 21.6
y ≈ 22