Answer:
Distance between the person and the plane is 12 miles
Step-by-step explanation:
From the figure attached,
An airplane is flying at an altitude AB = 6 miles.
An observer is standing at point C from where he observes the plane at an angle of elevation θ
Therefore, sinθ = 
sinθ = 
AC = 
AC = 6cosecθ
If angle θ = 30°
Then AC = 6cosec30
AC = 6×2
AC = 12 miles
Therefore, distance between the person and the plane is 12 miles.
Answer:
10 ft= 3 yd 1.000000 ft
Step-by-step explanation:
No explanation needed , it's a simple conversion.
X + y = 90 because the 2 angles add up to 90
Now m < x = five times m < y, so x = 5y or y = x/5
so the last choice is the correct one.
Answer : 60 degrees
Explanation: All triangles's angles add up to 180. Since all angles are equal, you can divide 180 by 3. 180/3 is 60
Divide both sides by 9 to go from this
9x > -18
to this
x > -2
On the left side the 9x becomes 9x/9 = 1x = x
on the right side we have -18/9 = -2
Answer is x > -2
