Answer:
12 units
Step-by-step explanation:
got it right on edg
 
        
             
        
        
        
Answer:
The standard deviation of number of hours worked per week for these workers is 3.91.
Step-by-step explanation:
Problems of normally distributed samples can be solved using the z-score formula.
In a set with mean  and standard deviation
 and standard deviation  , the zscore of a measure X is given by
, the zscore of a measure X is given by

After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X. Subtracting 1 by the pvalue, we This p-value is the probability that the value of the measure is greater than X.
In this problem we have that:
The average number of hours worked per week is 43.4, so  .
.
Suppose 12% of these workers work more than 48 hours. Based on this percentage, what is the standard deviation of number of hours worked per week for these workers.
This means that the Z score of  has a pvalue of 0.88. This is Z between 1.17 and 1.18. So we use
 has a pvalue of 0.88. This is Z between 1.17 and 1.18. So we use  .
.





The standard deviation of number of hours worked per week for these workers is 3.91.
 
        
             
        
        
        
Answer:
14
Step-by-step explanation:
In a triangle, the midline joining the midpoints of two sides is parallel to the third side and half as long, so 
FB = EC/2
2x - 6 = 44/2
2x - 6 = 22
2x = 22 + 6
2x = 28
x = 28/2
x = 14
 
        
             
        
        
        
Can you be a little more specific please
        
                    
             
        
        
        
Answer:
Yessir
Step-by-step explanation: