Answer:
10,500
Step-by-step explanation:
You must divide 52,500 by 5. 
5 goes into the 5 in 52,500 one time. 5-5 is 0. 5 doesn't go into 2 so put a 0. 5 goes into 25 five times. 25-25 is 0. 5 goes into 5 one time. subtract and add the zeros at end. And you get 10,500
 
        
             
        
        
        
Answer: 
Step-by-step explanation:
The confidence interval for population mean is given by :-
 , where
, where  is the sample mean and ME is the margin of error .
 is the sample mean and ME is the margin of error .
Given : The sample mean : 
Margin of error : 
Then , the range of values (confidence interval) likely to contain the true value of the population parameter will be :-

Hence, the range of values likely to contain the true value of the population parameter =  
 
        
                    
             
        
        
        
Step-by-step explanation:
11. shape 1 => A = ½×17×10=85m²
 shape 2=> A = 17×9 =153 m²
 total area = 238 m²
12. shape 1 => A = 7×3= 21 m²
 shape 2=> A = 3×2 = 6 m²
 total area = 27 m²
 
        
             
        
        
        
Answer:
b = -1
Step-by-step explanation:
Solve for b means, write in the form of b =...
Given 
+ b = - 1 and this is the same as b = - 1.
That is because the plus sign has no real meaning here, so you can ignore it as if it was not there at all.
It so turns out you now have the answer!
 
        
             
        
        
        
The interval 

 corresponds to the part of the distribution lying within 2 standard deviations of the mean (since 500-2*100=300 and 500+2*100=700). The empirical rule states that approximately 95% of the distribution is expected to fall in this range.