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Comparing Order of Magnitude A biologist estimated the number of cells in a culture sample as 1.3 * 102. One week later, he looked at the same culture sample and estimated that the number of cells had grown to 3.9 * 105. Determine how many times larger the culture sample was compared to a week earlier. (3.9 * 105) (1.3 * 102) Complete the quotient in scientific notation and find the solution in standard notation. * =

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  1. Today, 19:38
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    the answer is 3 10 to the third power and 3,000
  2. Today, 19:59
    0
    3 * 10^3 in scientific notation.

    3,000 in standard notation.

    Step-by-step explanation:

    We divide:

    3.9 * 10^5 / 1.3 * 10^2

    = (3.9/1.3) * (10^5 / 10^2)

    = 3 * 10 (5-2)

    = 3 * 10^3.

    This equals 3 * 1,000 = 3000.
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