A trinomial because it is a 3 term polynomial
        
             
        
        
        
Complete Question 
The complete question is shown on the first uploaded image 
Answer:
a
  
b
   
 
c
  The correct option is  D 
Step-by-step explanation:
From the question we are told that 
     The margin of error is   
      The largest value is  k =  15 
      The smallest value is  u = 7 
From the question we are told the confidence level is  95% , hence the level of significance is    
        
=>    
Generally from the normal distribution table the critical value  of   is
 is  
     
Generally population  standard deviation estimate is mathematically represented as 
       
Here the Range is mathematically represented as 
        
=>    
=>    
=>   
=>   
Generally 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%5Cfrac%7BZ_%7B%5Cfrac%7B%5Calpha%20%7D%7B2%7D%20%7D%20%2A%20%20%5Csigma%20%7D%7BE%7D%20%5D%20%5E2)
=>   ![n = [1.96  *  2 }{0.23} ] ^2](https://tex.z-dn.net/?f=n%20%3D%20%5B1.96%20%20%2A%20%202%20%7D%7B0.23%7D%20%5D%20%5E2)
=>   
Generally to obtain a  conservatively small sample size the population standard deviation estimate becomes 
=>   
=>   
=>   
Generally the conservatively small sample size is mathematically evaluated as 
 ![n = [\frac{Z_{\frac{\alpha }{2} } *  \sigma }{E} ] ^2](https://tex.z-dn.net/?f=n%20%3D%20%5B%5Cfrac%7BZ_%7B%5Cfrac%7B%5Calpha%20%7D%7B2%7D%20%7D%20%2A%20%20%5Csigma%20%7D%7BE%7D%20%5D%20%5E2)
=>   ![n = [1.96  *  1.333 }{0.23} ] ^2](https://tex.z-dn.net/?f=n%20%3D%20%5B1.96%20%20%2A%20%201.333%20%7D%7B0.23%7D%20%5D%20%5E2)
=>    
   
  
 
        
             
        
        
        
If the statement is true, and you Rearrange it. It should still be true unless you added false facts into it.<span />
        
                    
             
        
        
        
<span>Yes, the equation can be solved by factoring. Using the given equation, take the square root of both sides. Both 169 and 9 are perfect squares, so the left side becomes plus or minus 13/3, which is rational. Six plus 13/3 is a rational number, and 6 minus 13/3 is also a rational number. If the solutions of a quadratic equation are rational, then the equation is factorable. </span>