Answer:
Height of flagpole = 571 ft
Step-by-step explanation:
Given:
Angle of elevation to the top of the flagpole is 55° .
Distance from the eyes to the base of flagpole = 400 ft.
To find the height of the flagpole.
Solution:
We can draw the situation as a right triangle as shown below.
In triangle ABC.

∠C= 55°
To find the length AB (height of the flagpole).
Applying trigonometric ratio :
 
 

Plugging in values.

Multiplying both sides by 400.


∴ 
Height of flagpole = 571 ft
 
        
             
        
        
        
Answer:
At the end of two years Mrs.Scott earned $1929.36 (i rounded the dec.) 
Step-by-step explanation:
A= p(1+r)^t 
P= 1750
r= .05
t= 2
A= 1750(1+.05)^2
A= 1929.375
 
        
             
        
        
        
Answer:
Option B, 8/5 hr
Step-by-step explanation:
1/2 + 1/8
1*4 / 2*4 + 1/8
4/8 + 1/8
5/8 = 1/t
5t / 5 = 8 / 5
t = 8/5
Answer:  Option B, 8/5 hr