Respuesta :

Given:

Speed of light = [tex]10^{-18}[/tex]

To find:

The number using a positive exponent.

Solution:

We have,

Speed of light = [tex]10^{-18}[/tex]

Using properties of exponents, it can be written as

Speed of light = [tex]\dfrac{1}{10^{18}}[/tex]             [tex][\because a^{-n}=\dfrac{1}{a^n}][/tex]

Therefore, using a positive exponent the speed of light is about  [tex]\dfrac{1}{10^{18}}[/tex].