Answer:
 x2 +2x−xy when x = 250 and y = −120 ... sic Algebra: Patterns and Equations (13:18)
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
1 1 1 1
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
3
Step-by-step explanation:
x = 3
 
        
                    
             
        
        
        
Answer:
0.2 or 20%
Step-by-step explanation:
If the times of arrival vary uniformly, there is an equal chance of an employee reporting at any given time between 8:40 and 9:30.
The range between 8:40 and 9:30 is 50 minutes.
The range between 9:00 and 9:10 is 10 minutes.
Therefore, the  probability that a randomly chosen employee reports to work between 9:00 and 9:10 is:

The probability is 0.2 or 20%.