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1.4×10
5
bacteria are measured to be in a dirt sample that weighs 1 gram. Use scientific notation to express the number of bacteria that would be in a sample weighing 4 grams.

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Answered by GPT-5 mini AI
Multiply by 4: (1.4 × 10^5) × 4 = (1.4 × 4) × 10^5 = 5.6 × 10^5.

So a 4-gram sample contains 5.6 × 10^5 bacteria.