Keystone Algebra I Practice Questions - Pennsylvania Keystone Exam - Algebra I Exam

Express the number \(0.00045\) in standard scientific notation.

\(4.5 \times 10^{-4}\) \(4.5 \times 10^{-5}\) \(45 \times 10^{-5}\) \(4.5 \times 10^4\)

Correct Answer:

\(4.5 \times 10^{-4}\)

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