The domain of a function is where we have a value for x.
Since that's the case the domain of f(x) = {x e R / 1 ≤ x < 5}
We see that we have a value for x = 1 cuz we have a filled circle, but we don't have a value for x = 5, look at the unfilled circle
So, our x can vary between 1 and 5, but can't be 5.
![\frac{137+150+144+149+x}{5} =141](https://tex.z-dn.net/?f=%5Cfrac%7B137%2B150%2B144%2B149%2Bx%7D%7B5%7D%20%3D141)
![x=125](https://tex.z-dn.net/?f=x%3D125)
Therefore, the man is shorter than 141 centimeters.
But what is the expression, you have to tell me so I can do it.
Answer:
hope this helps you..........