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28 September, 08:39

Jamie used a microscope to measure the diameter of a hair. She found that the diameter of

the hair was 0.000072 meter. How is this number written in scientific notation?

A 7.2 * 10^-5

B 7.2 * 10^6

C 7.2 * 10^5

D 7.2 * 10^-6

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Answers (1)
  1. 28 September, 09:59
    0
    Your answer is A. 7.2x10^-5
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