Which of the following expressions is written in scientific notation?

Cynthia Bell

Cynthia Bell

Answered question

2021-12-11

Which of the following expressions is written in scientific notation? 73.4×105

Answer & Explanation

stomachdm

stomachdm

Beginner2021-12-12Added 33 answers

A number is written in scientific notation when the number is written in the form a×10n, where n needs to be an integer and a needs to satisfy the inequality 1a<10.
73.4×105
Comparing the given number with the form a×10n, we determine the values of a and n.
a=73.4
n=5
We need to verify whether n is an integer and a satisfies the inequality 1a<10.
n=5 is indeed an integer. Howewer, a=73.4 is greater than 10 and thus a does not satisfy the inequality 1a<10. We then conclude that the number is not written in scientific notation.

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