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25 January, 13:32

Express your answer in scientific notation. (7.9x10^7) + (1.2x10^7)

A. 9.48x10^7

B. 9.1x10^7

C. 9.1x10^14

D. 9.1x10^49

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Answers (2)
  1. 25 January, 14:03
    0
    The answer would be

    C. 9.1x10^14
  2. 25 January, 14:33
    0
    B. 9.1 x 10^7

    Step-by-step explanation:

    (7.9x10^7) + (1.2x10^7)

    = 10^7 (7.9 + 1.2)

    = 9.1 x 10^7
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