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Multiply, write result in scientific notation.

15.(1.4x10^1)(8 x 10^4)

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3 answers

  1. multiply the numbers first, 1.4x8
    and then deal with the 10 to the power stuff (since the bases are the same we would add the exponents
    (1.4x8)x10^5
    but 1.4x8 is 11.2
    so now we have
    11.2x10^5
    but in scientific notation you need a number between 1 and 10, thus 11.2 becomes
    = 1.12x10^1 and we are still multiplying by 10^5
    = 1.12 x 10^(1+5)
    = 1.12 x 10^6

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  2. can i get 16 (1.7*10^-4)(5*10^-5)

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  3. No

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