1/2 b-39=101
+39 +39
1/2 b= 140
2(1/2) b= 140(2)
b=280
R equals approximately 4/5
9+3 =12
12/4 = 3
(3)2-4(3)-3
6-12-3
-9 is the answer
Wherever there is an x , plug in 20,000
Answer:
the height of the tree is 19.2 ft
Step-by-step explanation:
Given;
distance from the foot of the tree, d = 15 ft
angle of elevation; θ = 52°
let the height of the tree = h
Make a sketch of the problem as follows;
↑
↑ h
52°---------------------
15 ft
If completed to form a right triangle by adding the hypotenuse side, we can calculate the height of the tree as follows;

Therefore, the height of the tree is 19.2 ft