Answer:
1 hour 9 minutes
Step-by-step explanation:
 
        
             
        
        
        
Answer:
-6
Step-by-step explanation:
 
        
             
        
        
        
40 divided by 8 = 5 
Mark Me Brainliest Please
 
        
             
        
        
        
Answer:
-10=x
Step-by-step explanation:
9x-1=10x+9
9x-10×=9+1
-x=10
x=-10
 
        
             
        
        
        
Answer:
A. -1.6; not significant 
Step-by-step explanation:
The z-score of a data set that is normally distributed with a mean of  and a standard deviation of
 and a standard deviation of  , is given by:
, is given by:
 .
.
From the question, the test score is:  , the mean is
, the mean is  , and the standard deviation is
, and the standard deviation is  .
.
We just have to plug these values into the above formula to obtain:
  .
.
This simplifies to:   .
.
  .
.
We can see that the z-score falls within two standard deviations of the mean. 
Since  the value is not significant.
 the value is not significant.
The correct answer is A. -1.6; not significant