Answer:

Explanation:
Given


Required
Determine P(x = 3)
This is calculated using:

So, we have:






Answer:
i think it is D Beaker A is used as an experiment to see the effects of air on limestone. Beaker B is used as an experiment to determine the effects of plain water with a neutral pH on limestone. Beaker C is used as an experiment to determine how acid affects limestone. Beaker D is used as a second experiment to determine how acid of a higher concentration affects limestone compared to acid of a lower concentration. There are no controls in this experiment because a controlled experiment was not practical for this situation.
Explanation:
Answer:
1. angle addition postulate 2. of the triangle theorem 3. subtraction property
Explanation:
i got it right on edge ma dudes