Verified Answer :

dalendrk

The scientific notation: \(a\cdot10^n\ where\ 1\leq a < 10\ and\ n\in\mathbb{Z}\)

\(320\ milion=320\cdot1,000,000=320\cdot10^6=3.2\cdot10^8\)

Answer: B. 3.2 × 10^8

meerkat18

scientific notation is the form of expressing a very large or very small number. In this case, million means there are 6 zeros after the number. since 320 can still be simplified to 3.2 x10^2. we can add 2 to 6 to make the scientific notation equal to B.3.2 × 108.

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