To make sure we don't have negatives under the square root, we specify that
![x \ge 0](https://img.qammunity.org/2019/formulas/mathematics/college/oxfa1o4khtce2ghd02lfekrnb8tzd2t848.png)
(x is greater than or equal to 0). We'll use this fact later on
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Start with the given inequality
![√(x) \le 7](https://img.qammunity.org/2019/formulas/mathematics/college/xgq6k86p4hqizejpxfdzwp5b36gv0nefg4.png)
and square both sides to get
![x \le 49](https://img.qammunity.org/2019/formulas/mathematics/college/fyg9i1hqusq9j0w16u7k84i7tynn15r0rl.png)
. Couple this with the fact that
![x \ge 0](https://img.qammunity.org/2019/formulas/mathematics/college/oxfa1o4khtce2ghd02lfekrnb8tzd2t848.png)
means we have this compound inequality
![0 \le x \le 49](https://img.qammunity.org/2019/formulas/mathematics/college/7iwcoehs15txw49h6na95d9kzmilurqpsn.png)
What does this mean? It means that we can pick any value from 0 to 49 (including both endpoints) and it will be a solution to the inequality. This applies to the values
49, 48 and 44Answers: Choice C, Choice D, Choice E