<h3>
Answer:</h3>
<u>As above angles are supplementary</u>,
- x + 120° = 180°
- x = 180° - 120°
- x = 60°
<u>Hence, value of x is 60°</u>.
Answer:
h = 19.6 ft
Step-by-step explanation:
Given that,
A 20 ft ladder 4ft from the base of the wall.
The height of the ladder, H = 20 ft
The base distance, b = 4 ft
We need to find the height of the reach. Let it is P.
Using Pythagoras theorem,

or
P = 19.6 ft
So, the height is 19.6 ft.
Answer:
350 feet per minute
Step-by-step explanation:
The amount of time it took the plane to descend is 3 hours 14 minutes minus 1 hour 30 minutes.
This means it took 104 minutes for the plane to descend 36,400 feet.
Dividing 36400 by 104, you get 350 which is the average rate of descent in feet per minute.
If you mean (3n-2m)^2 then the answer is
9n^2-12mn+4m^2
So B