Express the following numbers to three significant figures.
(i) `6.022xx10^(23)`
(ii) 44.216

Explanation

To express the given numbers to three significant figures, we will follow these steps:

### Step 1: Analyze the first number `6.022 x 10^23`
1. Identify the significant figures in the number. The digits `6`, `0`, `2`, and `2` are significant, giving us a total of four significant figures.
2. To round this number to three significant figures, we look at the fourth significant figure, which is `2`.
3. Since `2` is less than `5`, we do not round up the last significant figure.
4. Therefore, the number rounded to three significant figures is `6.02 x 10^23`.

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