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Algebra problem #20721

Algebra Level 1

Which of the following is how $123.45$ is written in scientific notation?

A) $1.2345$
B) $1.2345 \times 10^2$
C) $123.45$
D) $12345$
E) $12345 \times 10^{-2}$

A E D B C

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Excel in math and science

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by Calvin Lin

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