Question

How do you write 0.0042 in scientific notation?

Answer 1

`=color(blue)(4.2 * 10^-3`

Explanation:

`0.0042 = 42/10000`

`=42 * 10^-4`

`=4.2*10 * 10^-4`

`=color(blue)(4.2 * 10^-3`