Answer:
(11,-28)
Step-by-step explanation:
 
        
             
        
        
        
Answer:

Step-by-step explanation:
<u>Step 1:  Convert words into numbers
</u>

<u>Step 2:  Multiply
</u>


<u>Step 3:  Divide
</u>


Answer:  
 
        
                    
             
        
        
        
s n a ke =4 they are only 4 sound in snake when you sound it out
 
        
                    
             
        
        
        
Answer:
a) P value = 0.0013
b) No, it is not plausible that the silicon content of the water is no greater than it was 10 years ago
Step-by-step explanation:
The null hypothesis here is “Mean is equal to 5” while alternate hypothesis is that “Mean is greater than 5”
Given  
Mean = 5, x’ = 5.4 and sigma = 1.2 and n = 85
Z = x-u’/sigma/sqrt n
Substituting the given values, we get –  
Z = 3.02
A)	P value = 0.0013 which is less than 0.05 and thus we will reject the null hypothesis
B)	There is enough evidence to reject the null hypothesis