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8 April, 10:12

Simplify the quotient 4.5x10^5/9*10^7. Write your answer in scientific notation show work

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  1. 8 April, 11:07
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    Remember

    (ab) / (cd) = (a/c) (b/d)

    and

    (x^m) / (x^n) = x^ (m-n)

    and (x^m) (x^n) = x^ (m+n)

    so

    (4.5x10^5) / (8x10^7) =

    (4.5/8) ((10^5) / (10^7)) =

    (0.5625) (10^ (5-7)) =

    (5.625x10^-1) (10^-2) =

    (5.625) (10^-3)

    it is 5.625 times 10⁻³
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