Answer:
it is Zero 0
Step-by-step explanation:
 
        
             
        
        
        
D=2r
              <span> diameter= 14cm 
 so, radius= 14/2= 7cm 
</span>
        
             
        
        
        
Answer:
 The value of the Rational expression when  is:
 is: 
Step-by-step explanation:
 For this exercise is important to remember:
-  When a negative number is raised to an even power, the result will be positive. 
- The multiplication of signs:
        
 
 Then, given the following Rational expression:
 
 You need to follow these steps in order to find its value when  :
:
 1. Substitute the given value of "x" ( ) into the expression:
) into the expression:
  
 2. Evaluate and simplify:
 
 
        
                    
             
        
        
        
We conclude that the sum of the first 8 terms of the arithmetic sequence is 17/5.
<h3>
How to get the sum of the first 8 terms?</h3>
In an arithmetic sequence, the difference between any two consecutive terms is a constant.
Here we know that:

There are 7 times the common difference between these two values, so if d is the common difference:

Then the sum of the first 8 terms is given by:

So we conclude that the sum of the first 8 terms of the arithmetic sequence is 17/5.
If you want to learn more about arithmetic sequences:
brainly.com/question/6561461
#SPJ1
 
        
             
        
        
        
Answer:
149.04
Step-by-step explanation:
after 64 percent off it is $138
then you ad 8% tax to $138
(which you can just put in a calculator)