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anonymous

  • one year ago

is 16pi rational or irrational?? Help please.

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  1. DanJS
    • one year ago
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    pi is for sure not a rational number, and i think any constant times an irrational is also irrational

  2. DanJS
    • one year ago
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    trancendental...

  3. DanJS
    • one year ago
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    a RATIOnal number can be expressed as a ratio of a/b

  4. anonymous
    • one year ago
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    i know its not a rational number but its confusing.

  5. anonymous
    • one year ago
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    what about this answer? ill draw it .

  6. DanJS
    • one year ago
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    http://www.mathsisfun.com/irrational-numbers.html

  7. anonymous
    • one year ago
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    |dw:1443160030434:dw|

  8. DanJS
    • one year ago
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    if a decimal repeats , i think you can always convert that into a fraction...

  9. DanJS
    • one year ago
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    something like letting s = 0.484848484848.. 100s = 48.4848484848.... 100s - s = 99s = 48 s = 48/99

  10. DanJS
    • one year ago
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    you see that

  11. anonymous
    • one year ago
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    okay thanks.

  12. anonymous
    • one year ago
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    yeah i got it now, Appreciate it.

  13. DanJS
    • one year ago
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    i would look up the properties of each, and what operations you can do , like multiplying by a constant, or adding a constant, or squaring... whatever

  14. DanJS
    • one year ago
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    without affecting the type of number it is

  15. anonymous
    • one year ago
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    i am now ah thanks.

  16. DanJS
    • one year ago
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    welcome

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