Answer:
3
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer: 
no estoy segura como se debe responder 
1 (x + 2y = -20) ----> x*2y= -20
-1 (x + 3y = -27) ----> x-3y= 27
           (0) x + (-1) y = 7 
 
        
             
        
        
        
 
the answer to your question is 70%. 49 is 70% of 70
 
 
        
             
        
        
        
Answer:
v=6
v=−4
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
B.) This is not a binomial experiment, because the number of trials is not fixed.
Step-by-step explanation:
For a certain experiment to be classed as a binomial, it has to meet some criteria ;
Which include ;
1.) The trials should be independent. 
11.) Each trial should be classifiable into one of success of failure. 
111). There is a fixed mean probability for success and failure 
IV) There is a fixed number of trials, in experiment described above, the number of trials isn't fixed, it is variable, as the trial will continue until a defective item is obtained.