Question:

Need help on some scientific notation questions?

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so the direstions say carry out each of the following expressions using scientific notation.

so i have like 30 questions in my face but ill pick 3 of different variety so i know how to do them :D

so i picked 800/40000

and 400*.006*.002

and last one

.000035/ 700*.001

if anyone knows a link that shows how to do the scientific notation in different forms plz gimmi :D

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  1. 800/40000

    8*100 / 4*10000

    8*10^2 / 4*10^4

    (8/4)*(10^2/10^4)

    2*10^(-2)

    Remember that dividing two numbers that have the same base, is done by subtracting the exponents.

    ----------------------------------

    400*.006*.002

    4*100 * 6*.001*2*.001

    4*10^2 * 6 * 10^(-3) * 2 * 10^(-3)

    4*6*2*10^2 *  10^(-3)  * 10^(-3)

    48 * 10^(-4)

    --------------------------------------...

    .000035/ 700*.001

    3.5 *.00001 / (7*100)  * 1*.001

    3.5 * 10^(-5) / (7*10^2) * 10^(-3)

    3.5/7 * 10^(-5) * 10^(-2) * 10^(-3)

    3.5/7 * 10^(-10)

    1/2 * 10^(-10)

    .5 * 10^(-10)

    5.0 * 10^(-11)

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