Answer:
3 ≤ X ≤ 8
Step-by-step explanation:
A die has 6 faces numbered from 1 to 6.
If two dice are rolled at the same time and the first die already shows a 2. Then the second die will show any number between 1 and 6 inclusive.
X which is the sum of the results shown by the dice will always be greater than or equal to 3 but less than or equal to 8. This is because the first die already shows a 2 and the second die will always be a number between 1 and 6 inclusive. i.e
X = result from die 1 + result from die 2
X = 2 + [1, 6]
X = [3, 8]
In other words, the minimum value of X is 3 and the maximum value of X is 8.
