Answer:
6 2/3
Step-by-step explanation:
 
        
             
        
        
        
Answer:
I think that would be 1
Step-by-step explanation:
 Do everything in the lines before anything else. -2 becomes a 2 and then you add that with the 12 and divide 12 on both sides to get one.
 
        
                    
             
        
        
        
3a to the power of 2 plus 5a minus 2
        
             
        
        
        
The probability of a negative result for a batch will be "0.3487".
Given values are:
Positivity rate,
Batch size,
Now,
The probability of negative result will be:
→ 
By substituting the values, we get
→                               
→                               
→                               
Thus the answer above is right.
Learn more about the probability here:
brainly.com/question/17927863