Review #1

Question

The radius of the planet Neptune is approximately 15,300 miles. How is this numbr of miles written in scientific notation?

Answer 1

To express the radius of Neptune, which is approximately 15,300 miles, in scientific notation, we need to write it in the format $a\times {10}^n$, where $1\le a<10$ and $n$ is an integer.

The number 15,300 can be rewritten as:

$$1.53\times {10}^4$$

So, in scientific notation, the radius of Neptune is $1.53\times {10}^4$ miles.