Answer:
(i)  
(ii) 1072
Step-by-step explanation:
<u>Part (i)</u>
Using Binomial series formula:

               
               
<u>Part (ii)</u>
<u />
                


There is no need to keep expanding since the remaining will include the variable.
Therefore, the term independent of x = 64 - 1152 + 2160 = 1072
 
        
             
        
        
        
Answer:
0.5818
Step-by-step explanation:
Suppose the average teenage romantic relationship is normally distributed with a mean number of 100 days with a standard deviation of 30 days. 
Answer:
The z score is used to determine how many standard deviations that the raw score is above or below the mean. If the z score is positive then the raw score is above the mean and if it is negative then it is below the mean. It is given by:

Given that:

Therefore, from the normal distribution table, P(90 < x < 150) = P(-0.33 < z < 1.67) = P(z < 1.67) - P(z < -0.33) = 0.9525 - 0.3707 = 0.5818
 
        
             
        
        
        
ANSWER

EXPLANATION
The given problem is 

This is defined if and only if 

Even the given expression can be simplified to obtain:

The exclusion is 

 
        
             
        
        
        
Answer:
Coordinates of the midpoint are (-5.5, 5)
 
        
             
        
        
        
Answer:
$2750/month
Step-by-step explanation: