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anonymous

  • one year ago

Miranda is adding the numbers below. 2.9 * 10^10 + 5.35 * 10^10 What is the sum written in scientific notation? A. 82.5*10^-11 B. 82.5*10^11 C. 8.25*10^20 D. 8.25*10^10

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  1. anonymous
    • one year ago
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    @mathmate

  2. kropot72
    • one year ago
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    A common factor of the two terms is 10^10, so we can write: 10^10(2.9 + 5.35) = ?

  3. anonymous
    • one year ago
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    82500000000

  4. mathmate
    • one year ago
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    " in scientific notation" means that you would have to write the number between 1 and 10 (but excluding 10) and multiply by an appropriate power of 10. For example, 525000 is written as \(5.25\times 10^5\) in scientific notation.

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