Answer:
 A. $1,110
 B. 50 units.
Step-by-step explanation:
 A. Substitute  into the function
 into the function  for calculate the time in hours required for the worker to produce 18 units:
 for calculate the time in hours required for the worker to produce 18 units:
 
 Now you need to substitute  into the function
 into the function  to calculate the amount in dollars she will be paid for 74 hours:
 to calculate the amount in dollars she will be paid for 74 hours:
 
 She will be paid $1,110.
 B. To calculate the number of units that the worker needs to produce to be paid $3,030 , you need to substitute  into the function
 into the function  and solve for T (to find the number of hours she requires to work to be paid $3,030)
 and solve for T (to find the number of hours she requires to work to be paid $3,030)
 
 Now, substitute  into
 into  and solve for x, to calculate the number of units she produces in 202 hours:
 and solve for x, to calculate the number of units she produces in 202 hours:
 
 She would need to produce 50 units to be paid $3,030
 
        
             
        
        
        
Answer:
See explanation
Step-by-step explanation:
We want to verify that:

Verifying from left, we have 

Expand the perfect square in the right:

We expand to get:

We simplify to get:

Cancel common factors:

This finally gives:

 
        
             
        
        
        
Answer:
outliar is23 
Step-by-step explanation:
 
        
             
        
        
        
There would be a hole when x = -4.
If you factor both the top and the bottom, you will see that the factor (x + 4) is in both the numerator and denominator. Therefore, the would be a hole when x = -4 because that would also make the denominator 0.
        
             
        
        
        
The most exact answer would be 0.19951% but the approximate answer would be 0.2%.