Answer:
4(8x-3.2)
Step-by-step explanation:
 
        
             
        
        
        
Answer:
 + 11m - 11
 + 11m - 11
Step-by-step explanation:
6m+(m-2)(m+7)+3  =   6m   +  [ m*m - 14 -2m + 7m]  + 3
=  6m  + mm - 14 + 5m  + 3
=  mm + 11m - 11
6m+(m-2)(m+7)+3   =  + 11m - 11
 + 11m - 11
 
        
             
        
        
        
23 x 10,000 = 230,000
Another name for 23 ten thousand is: Two hundred thirty thousand
And another name also is: 230 Thousands
        
                    
             
        
        
        
Answer:
 I think it is the right clock wise?
 
        
             
        
        
        
Answer:
21
Step-by-step explanation:
Using<em> Simple Random Sampling</em>, we can estimate the sample size by the formula
 
where  
n = sample size
Z = the z-score corresponding to the confidence level 99.5%
S = the assumed standard deviation = 3 seconds
e = margin of error = 2 seconds
<em>It is worth noticing that the higher the confidence level, the larger the sample should be.
</em>
The z-score corresponding to a confidence level of 99.5% can be obtained either with a table or the computer and equals
Z = 3.023
Replacing the values in our formula
 
So the size of the sample should be at least 21.