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29 November, 04:22

Which of the following expressions is written in scientific notation? 0.2 * 10 - 5 31.4 * 10 4 13 * 10 4 1 * 10 - 3

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  1. 29 November, 04:46
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    Scientific notation is

    (number less than 10 and greater than or equal to 1) tims 10^something

    first one, 0.2 is less than 1, nope

    2nd one, 31.4 is greater than 10, nope

    3rd one, 13 is greater than 10, nope

    4th one: 1=1, yep

    last one is writen in scientific notation
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