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22 January, 18:49

Evaluate each expression. Express your answer in scientific notation.

(1.5 x 10^2) (5x10^10)

4.8 x 10^-8 / 3x10^-3

(5 x 10^8) (4x10^3)

(7.2x10^3) : (1.2 x 10^5)

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  1. 22 January, 19:43
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    Step-by-step explanation:

    To simplify

    (1.5*10^2) (5*10^10)

    (1.5*5) * 10^2*10^10

    7.5*10^12

    To simplify 4.8*10^-8:3*10^-3

    (4.8:3) * 10^-8+3

    1.6*10^-5

    To simplify

    5*10^8*4*10^3

    (5*4) * 10^8*10^3

    20*10^11

    2.0*10^1*10^11

    2.0*10^12

    To find

    7.2*10^3:1.2*10^5

    (7.2:1.2) * 10^3-5

    6*10^-2
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