Answer:
D. 2 ≤ x ≤ 5
The domain is the x values of the graph.
Here, we have points with x values at 2 and 5. Since the function stays within these two points, our domain is;
D. 2 ≤ x ≤ 5
If the value of n is decreasing, that 15 must be increasing.
Step-by-step explanation:
There are 25 marbles altogether.
When you pick the 1st marble, there's a 5/25 chance that you pick a red marble.
When you pick the 2nd marble, there's a 15/24 chance that you pick a blue marble.
Why did it become 24? Because you already pick the 1st marble.
So since each probability is independent from each other, the total probability can be found by multiplying both probabilities, which is 1/8.
C, because the opposite would be + 2 and none of the ions have that charge