Answer:
1 + 2 a^n
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Option B
Step-by-step explanation:
The absolute value of a number is how far a number is from zero. We can use ' | | ' to represent the absolute volume of a number.  The distance, or absolute value, of -8 is 8. 
We can represent this by writing:
|-8| = 8 
Option B should be the correct answer. 
 
        
                    
             
        
        
        
<h2><u>
Answer with explanation</u>
:</h2>
Let p be the population proportion of parents who had children in grades K-12 were satisfied with the quality of education the students receive.
Set of hypothesis : 

Confidence interval for population proportion is given by :-
 , where
 , where 
n= sample size
  = sample proportion
= sample proportion
and  is the two-tailed z-value for confidence level (c).
 is the two-tailed z-value for confidence level (c).
As per given , 
Sample size of parents : n= 1085
Number of parents indicated that they were satisfied= 466
Sample proportion :  
Critical value for 90% confidence interval :  ( by z-value table)
  ( by z-value table)
Now, the  90% confidence interval :
 
 
Thus , the 90% confidence interval: (0.4043, 0.4537).
Since 0.43 lies in 90% confidence interval , it means we do not  have enough evidence to reject the null hypothesis .
i.e. We are have no evidence that parents' attitudes toward the quality of education have changed.
 
        
        
        
I’m pretty sure it is c.
let me know if i’m wrong:)