It means that the value will not be included. So if the open circle coincides with 2 on the x-axis then your limit will have x<2, which also means that the function is not continuous.
The least common multiple of 5 and 10 is 5. I hope this helps you.
Given:
In a number, adding
, then multiplying the result by
we get 8.
To find:
The unknown number.
Solution:
Let the unknown number be x.
According to the question,




Multiply both sides by
.


Subtract
from both sides.




Therefore, the required number is
.