Verified Answer :

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

carlosego

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:


\(m*10 ^ e
\)

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:

\(9 * 10 ^ {-6} m
\)

Answer:

The measurement of length that is the smallest is:


\(9 * 10 ^ {-6} m
\)

option A

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