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jennyjewell25

  • 2 years ago

Identify the number as rational or irrational. Explain. 291.87

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  1. myininaya
    • 2 years ago
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    Can this number be written as an integer/integer?

  2. jennyjewell25
    • 2 years ago
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    i have no idea

  3. myininaya
    • 2 years ago
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    If so it it rational If not it is irrational

  4. radar
    • 2 years ago
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    291 87/100

  5. myininaya
    • 2 years ago
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    So based on what radar posted what conclusion can you draw?

  6. jennyjewell25
    • 2 years ago
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    i dont even understand what he put i dont even understand the question

  7. myininaya
    • 2 years ago
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    Basically it is asking if you can write it as an integer over and integer or not

  8. myininaya
    • 2 years ago
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    \[\text{ example } 21.23 \text{ is rational because } 21.23=\frac{2123}{100} \]

  9. myininaya
    • 2 years ago
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    2123 and 100 are integers

  10. myininaya
    • 2 years ago
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    10.421=10421/1000 is rational too

  11. jennyjewell25
    • 2 years ago
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    so another words it rational because its equivalent to a fraction

  12. myininaya
    • 2 years ago
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    a fraction that is only composed of integers integers are {...,-3,-2,-1,0,1,2,3,...}

  13. jennyjewell25
    • 2 years ago
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    wow im confused

  14. myininaya
    • 2 years ago
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    an example of irrational is 2.533333343536346346436346363634564352345325235.... keeps going and has no pattern

  15. myininaya
    • 2 years ago
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    your number terminates so it is rational

  16. myininaya
    • 2 years ago
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    if the decimal part has a pattern it would also be rational since it can be written as an integer over an integer

  17. myininaya
    • 2 years ago
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    just like one that terminates can be written as an integer over an integer

  18. myininaya
    • 2 years ago
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    pattern or terminates=> rational

  19. myininaya
    • 2 years ago
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    no pattern and forever never ending=>irrational

  20. myininaya
    • 2 years ago
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    is that less complicated?

  21. radar
    • 2 years ago
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    Some irrational numbers are pi, the square root of 2, and many others.

  22. jennyjewell25
    • 2 years ago
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    yes thank you

  23. radar
    • 2 years ago
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    Good luck with these, you will find irrational things in life. They are real, but can't be expressed exactly.

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