9514 1404 393
Answer:
   78.5 km
Step-by-step explanation:
Measured at the airport, the angle between the two planes is ...
   180° -60° -50° = 70°
The law of cosines tells us the distance between the planes is ...
   d = √(50² +80² -2·50·80·cos(70°)) ≈ √6163.84 ≈ 78.5 . . . km
The planes are about 78.5 km apart.
 
        
             
        
        
        
Combining like terms would be defined as multiplying each term in a set of parentheses by the number outside of the parentheses.
        
             
        
        
        
L = 24f
l/24 = f
Hope this helps!
        
             
        
        
        
Answer:
i donk know and i dont understand the question
Step-by-step explanation:
 
        
             
        
        
        
Answer:
60 local calls
Step-by-step explanation:
Total price minus the long-distance charges: 54.35 - 8.35 = $46.00
46 minus the fixed per month cost: 46-31 = $15
15 divided by the cost of each local call: 15/0.25 = 60 calls