Answer:
The sample required is  
Step-by-step explanation:
From the question we are told that 
      The  standard deviation is  
       The margin of error is 
       
Given that the confidence level is  99%  then the level of  significance is mathematically evaluated as 
          
         
         
Next we will obtain the critical value   from the normal distribution table(reference  math dot armstrong dot edu) , the value is
 from the normal distribution table(reference  math dot armstrong dot edu) , the value is   
              
The  sample size is mathematically represented as 
           ![n = [ \frac{Z_{\frac{\alpha }{2} } *  \sigma }{E} ]^2](https://tex.z-dn.net/?f=n%20%3D%20%5B%20%5Cfrac%7BZ_%7B%5Cfrac%7B%5Calpha%20%7D%7B2%7D%20%7D%20%2A%20%20%5Csigma%20%7D%7BE%7D%20%5D%5E2)
substituting values 
            ![n = [ \frac{ 2.58 *  9 }{2} ]^2](https://tex.z-dn.net/?f=n%20%3D%20%5B%20%5Cfrac%7B%202.58%20%2A%20%209%20%7D%7B2%7D%20%5D%5E2)
             
 
        
             
        
        
        
Answer:
y-1+ 2y^2/y^3+1
Step-by-step explanation:
 
        
             
        
        
        
Slope, shmlope. What's the q?
        
             
        
        
        
Hello there!
From that amount of information, you can't get a numerical value for the answer.
Hope This Helps You!
Good Luck :)
        
                    
             
        
        
        
Answer:
C. always true
Step-by-step explanation:
<1  and <4 from a straight line and a straight line is always 180 degrees so