Answer:

is the required polynomial with degree 3 and p ( 7 ) = 0 
Step-by-step explanation:
Given:
p ( 7 ) = 0
To Find:
p ( x ) = ?
Solution:
Given p ( 7 ) = 0 that means substituting 7 in the polynomial function will get the value of the polynomial as 0.
Therefore zero's of the polynomial is seven i.e 7
Degree : Highest raise to power in the polynomial is the degree of the polynomial
We have the identity,

Take a = x
         b = 7
Substitute in the identity we get

Which is the required Polynomial function in degree 3 and if we substitute 7 in the polynomial function will get the value of the polynomial function zero.
p ( 7 ) = 7³ - 21×7² + 147×7 - 7³
p ( 7 ) = 0

 
        
             
        
        
        
Answer:
a = 30/5 = 6
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Confidence limit = [52.8%, 75.2%]
Step-by-step explanation:



 ±
 ±  
 
where the value  will be taken from the z-table for 95% confidence interval
 will be taken from the z-table for 95% confidence interval
 1-0.95= 0.05/2= 0.025
0.95+0.025= 0.0975
From the z-table the value of  corresponding to 0.0975 is 1.96
 corresponding to 0.0975 is 1.96
  ±
 ±  
 
  ±
 ±  
 
 ±
 ± 
 % ±
% ±  %
%
so the confidence interval is
 %
%
 %
%
![[52.8, 75.2]](https://tex.z-dn.net/?f=%5B52.8%2C%2075.2%5D)
 
        
             
        
        
        
Answer:
C, the set of all possible output values
Step-by-step explanation:
Range = Output