Answer: 4-2.1x
Step-by-step explanation:
 
        
             
        
        
        
Answer:
 :
 :  
 :
 : 
Step-by-step explanation:
It is given the average cost of the flight nationwide is $ 445.99
I wanted to  to determine that the true average is greater than $ 445.99
 to determine that the true average is greater than $ 445.99
Let the hypothesis that the true average is actually greater than $445.99
Therefore, 
the  for the test is :
 for the test is :
 :
 : 
And the alternate hypothesis is :
 :
 : 
 
        
             
        
        
        
It is the appearance of two full moons in a calendar month.
        
             
        
        
        
Answer:
A = 180 customers.
Step-by-step explanation:
Let the number of customers that made additional purchases be A.
Given the following data;
Percentage = 72% = 72/100 = 0.72
Total number of customers = 250
To find the number of customers that made additional purchases;
A = 0.72 * 250
A = 180 customers.
Therefore, 180 customers made additional purchases on Wednesday.
 
        
             
        
        
        
Answer:
A=2*(t-1)-500
Step-by-step explanation:
I did it on study island.