Answer:
the value of b is 74 it won't let me help 
 
        
             
        
        
        
The only correct answer is C.) 9
✓16 = 4
5+4= 9
x = 9
        
             
        
        
        
Step-by-step explanation:
y+3=x
or 0=x-y-3... ans 
 
 3x+4y=16
 or, 3x+4y-16=0 answer.......
 
        
             
        
        
        
The answer is 21 because if you subtract 17 from 17 and 38 you get 21. Z=21.
 
        
                    
             
        
        
        
Answer:
C. Probability is 0.90, which is inconsistent with the Empirical Rule.
Step-by-step explanation:
We have been given that on average, the parts from a supplier have a mean of 97.5 inches and a standard deviation of 6.1 inches.
First of all, we will find z-score corresponding to 87.5 and 107.5 respectively as:










Now, we need to find the probability  .
.
Using property  , we will get:
, we will get:

From normal distribution table, we will get:



Since the probability is 0.90, which is inconsistent with the Empirical Rule, therefore, option C is the correct choice.