Answer:
2^3
Step-by-step explanation:
you subtract the exponents if they have the same coefficient when dividing them. 
9-6=3
 
        
             
        
        
        
Answer:
a) 0.1535
b) 0.4866
c) 0.8111
Step-by-step explanation:
The probability that the next call come within the next t minutes is:
According to this model, 
a) the probability that a call in comes within 1/2 minutes is 
 =0.1535
b) the probability that a call in comes within 2 minutes is  
 =0.4866
c) the probability that a call in comes within 5 minutes is  
 =0.8111
 
        
             
        
        
        
Step-by-step explanation:
 hi im not sure it's right it was kinda confusing