Question

Question #9435c

Answer 1

Three.

Explanation:

Right from the start, you should be able to say that the number hs at least three significant figures because it has `3` non-zero digits.

Non-zero digits are always significant, regardless if the precede a decimal point or follow it.

In this case, you have `4`, `8`, and `3` as non-zero digits, so you can say that you start with

`0.483 ->` three sig figs

Now, how about the `0`, would that be significant?

As you can see, the `0`, which acts as a "placeholder", precedes the decimal point in a number that is smaller than `1`. In such cases, the `0` is not significant.

You can thus say that `0.483` has `3` significant figures.