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12 November, 00:28

What is the expression written using each base only once?

(-4) ^-6 * (-4) ^7

A. 4^13

B.-4

C. 13

D. 1

Find the simplified form of expression. Give your answer in scientific notation.

(3 x 10^6) (8 x 10^-4)

A. 1.1 x 10^3

B. 2.4 x 10^3

C. 1.1 x 10^-23

D. 2.4 x 10^-23

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Answers (1)
  1. 12 November, 00:39
    0
    1. (-4) ^-6 * (-4) ^7 = (-4) ^ (-6+7) = (-4) ^1 =

    B. - 4

    2. (3*10^6) * (8*10^-4) = (3*8) * 10^ (6-4) = 24*10^2 =

    B. 2.4*10^3
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