Answer:
- 7/12
Step-by-step explanation:
- 1/2 ( 5/6 + 1/3 )
- 1/2 ( 5/6 + 2/6)
- 1/2 ( 7/6 )
- 7/12 or - 0.58
 
        
             
        
        
        
 
We know that time is distance over velocity, that is:
time = distance / velocity
t = d / v
 
Now from the given:
d / 460 + d / 500 = 4.8
Now we can find for d:
d = 4.8 / [1/460 + 1/500]
d = 1150 miles
 
So the time of each flight is:
flight = 1150 / 460 = 2.5 hours
<span>return flight = 1150 / 500 = 2.3 hours</span>
 
        
                    
             
        
        
        
The answer is 41 
Because 90-49
        
                    
             
        
        
        
Answer:
B. -pi/6
Step-by-step explanation:
 
        
             
        
        
        
The complete question in the attached figure
we know that
 tan R°=opposite side angle R/adjacent side angle R
opposite side angle R=72 units
adjacent side angle R=25 units
so
 tan R°=72/25
R=arc tan (72/25)---------> R=70.85°-------> R=70.9°
the answer is R=70.9°