Question

The distance between the sun and Neptune is approximately 2,800,000,000 miles, how do you write it in scientific notation?

Answer 1

`2.8*10^9`

Explanation:

When we write numbers in scientific notation, we want one non-zero digit before the decimal. This means we'll have the decimal between the `2` and the `8`.

We need to loop the decimal `9` times to the left. This will become our power of `10`.

Since we looped left, the exponent will be positive. We have

`2.8*10^9`

Hope this helps!