Answer:
6 samples 
Step-by-step explanation:
Given :
Sample size, = n
Standard deviation, = 6000
Margin of Error = 2000
Confidence interval, α = 95%
Zcritical at 95% = 1.96
n = (Zcritical * σ) / margin of error 
n = (1.96 * 6000) /2000
n = 11760 / 2000
n = 5.88
n = 6 samples 
 
        
             
        
        
        
Answer:
1.0
Step-by-step explanation:
You are rounding to the nearest tenth, so you should have only 2 places remaining (0.0). So, you look to the 7 to change the 9. 7 is bigger than 5, so you round 9 up. Since 9 plus 1 equals 10, the final answer is 1.0.
Hope this helps! :)
 
        
                    
             
        
        
        
Answer:
D.18
Step-by-step explanation:
6-x=-12
-x=-12-6
-x=-18   divide both sides by -1
x=18