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7 November, 15:20

Devon checked a web site that gave daily updates on distances from Earth. He found that Pluto was 31.514 astronomical units (AU) from Earth. One AU = 149,600,000 kilometers. How many kilometers is Pluto from Earth expressed in scientific notation? Round the mantissa to the nearest thousandth.

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Answers (2)
  1. 7 November, 16:24
    0
    C. 4.714*10^9

    Step-by-step explanation:

    Multiply 31.514*14900000

    the answer will be 4714494400

    In all of the answers it shows 4.714. notice how the decimal is in between 4 and 7. count the numbers and stop once you're at 7. there are 9 numbers. so it will be 4714494400 to the 9th power. which is 4.714*10^9.
  2. 7 November, 18:56
    0
    The answer is C
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Home » Mathematics » Devon checked a web site that gave daily updates on distances from Earth. He found that Pluto was 31.514 astronomical units (AU) from Earth. One AU = 149,600,000 kilometers.
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