Answer:
Step-by-step explanation:
For the limit of a function to exist, then the right hand limit of the function must be equal to its left hand limit as shown;
If the function is f(x), for f(x) to exist then;

Given the function;

Lets check if the above statement is true.
The right hand limit of the function occurs at x> 9
f(x) = 9-x

The left hand limit occurs at x<9
f(x) = x+9

From the above calculation, it can be seen that  , this shows that the function given does not exist at the given point.
, this shows that the function given does not exist at the given point. 
 
        
             
        
        
        
Answer: No this is not a linear function as the y values have different first differences.
Step-by-step explanation:
First we look at the x values. We start off and look at the second x value and subtract the first x value from it (That would be 1-0) and that equals to 1. Then we look at the third x value and subtract the second x value from it (2-1) and that equals to 1. Then we look at the fourth x value and subtract the third x value from it (That would be 3-2) and that is 1. Next we look at the fifth x value and subtract the fourth x value from it (That would be 4-3) and that is 1. 
Now we look at the y values and do the same thing as with the x values. We start off and look at the second y value and subtract the first y value from it (That would be 1-0) and that equals to 1. Then we look at the third y value and subtract the second y value from it (4-1) and that equals to 3. Then we look at the fourth y value and subtract the third y value from it (That would be 9-4) and that is 5. Next we look at the fifth y value and subtract the fourth y value from it (That would be 16-9) and that is 7. 
Even though the x values all have the same first differences, the y values do not and so this cannot be a linear function.
I hope this helps. Tell me if something doesn't make sense.
 
        
                    
             
        
        
        
Answer:
67
Step-by-step explanation:
Subsitute both given values into the equation then continue to simplify the equation 
3(4(-2)+5(3)) -2(7(-2)-3(3))
3(-8+15) -2(-14-9)
3(7) -2(-23)
21 +46
67
 
        
                    
             
        
        
        
Answer:
it answer is 3 because it is trigonometry
 
        
             
        
        
        
Answer:
22 people
Step-by-step explanation:
Sean has 2 3/4 candy bars. That is 11/4 candy bars. 
He wants to give out 1/8 candy bars.
The number of people that will get candy is:

22 people can get candy.