Answer:

Step-by-step explanation:
Given expression
= 
= 
= 
= 

3 gray cats enjoy! (the rest of the typing here you may ignore its just to get 20 charactors) btw take 9/3 to get 3 gray cats because for every 3 calico there is one gray
Answer: The range is (-∞,∞)
Step-by-step explanation:
Answer:

Step-by-step explanation:
The unit vector for a nonzero vector, say u, in the direction of u is given by:
û =
---------------(i)
Where;
|u| = magnitude of vector u
From the question;
u = (4, -4)
First let's calculate the magnitude of u as follows;
|u| = 
|u| = 
|u| =
= 
Now, substitute u and |u| into equation (i) as follows;
û = 
û = 
û = 
Therefore, the unit vector is 
Answer:
C
Step-by-step explanation:
Calculator did it lol