Respuesta :

B 7×10=70-5=65 metre this is the correct answer

The first thing we will do for this case is to define the scientific notation:

It is a way of writing numbers that accommodate values too large or too small to be written in a conventional manner.

A number written in scientific notation follows the following pattern:

[tex] m*10 ^ e
[/tex]

Where,

The number m is called "mantissa" and e the "order of magnitude"

The smallest length then, is one that has the smallest order of magnitude:

[tex] 9 * 10 ^ {-6} m
[/tex]

Answer:

The measurement of length that is the smallest is:

[tex] 9 * 10 ^ {-6} m
[/tex]

option A