Question

How do you write 3,901.25 as a scientific notation?

Answer 1

Answer: 3.90125×10⁻³

Explanation:

The scientific notation consists of two parts

1. the number based: a, where 0<a<10
2. the exponent based: 10ˣ, which is determined by how we change the number based "a"

So the final version should be: a×10ˣ

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STEP ONE. Number based

We are given 3,901.25

In order to make it within the range of a, we should move the decimal to the left three places, or divide the number by 10³, which is times 10⁻³

We get 3.90125

STEP TWO: Exponent based

Since we changed the number by 10⁻³, this will be our exponent-based.

Therefore, it is 3.90125×10⁻³

Hope this helps!! :)

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