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29 September, 18:17

The diameter of a human hair is 9 / cdot 10^{-5}9?10?5 9, dot, 10, start superscript, minus, 5, end superscript meters. The diameter of a spider's silk is 3 / cdot 10^{-6}3?10?6 3, dot, 10, start superscript, minus, 6, end superscript meters. How much greater is the diameter of a human hair than the diameter of a spider's silk? Write your answer in scientific notation.

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  1. 29 September, 21:50
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    8.7 / times 10^{-5}

    Step-by-step explanation:

    Given that the diameter of a human hair

    Given that the diameter of a spider's silk

    Now we have to find how much greater is the diameter of a human hair than the diameter of a spider's silk. To find that we just need to subtract the given numbers. Since powers are not same so let's make them equal now we can easily subtract the coefficients that is 3 from 9 = (90-3) / times 10^{-6}

    = 87 / times 10^{-6}

    = 8.7 / times 10^{-5}
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