The domain of a function is the set of values of x for which a value of y exists. In this case, the only way that a value of y would not exist is for a denominator to equal to zero. If this function is f(x) = 1/(x+1) + 5, then we must find the values of x for which the denominator (x+1) = 0, which is at x = -1.
Therefore the domain is all real numbers except x = -1. In interval notation this can be written as (-infinity, -1), (-1, infinity).
        
                    
             
        
        
        
First you have to do 

.
Since the car is moving at a constant rate, the answer would be 
8h.
 
        
        
        
Which graph? Please explain in the comments
        
             
        
        
        
Answer:
9 cm.
Step-by-step explanation:
Let x be the number of hours.
We have been given that after a winter storm, the depth of the snow on cherry street was 10 cm. Then, the snow started melting at a rate of  , so the snow melted in x hours will be
, so the snow melted in x hours will be  .
.
Since initially there was 10 cm of snow, so the depth of snow after x hours will be: 

To find the depth of snow after 3 hours we will substitute  in our expression.
 in our expression.



Therefore, the depth of the snow on cherry street after 3 hours will be 9 cm.
 
        
                    
             
        
        
        
(2n-1) /(n+9)
hope it can help u