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Yolo4mecuite

Which number is irrational? Select one: a. √169 b. √144 c. √81 d. √156

  • one year ago
  • one year ago

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  1. Azteck
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    What's a rational number?

    • one year ago
  2. Yolo4mecuite
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    A rational number is a number that can be expressed as a fraction or ratio (rational). The numerator and the denominator of the fraction are both integers.

    • one year ago
  3. Azteck
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    A rational number can also be a whole number.

    • one year ago
  4. Azteck
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    so the square root of 169 is 13, correct?

    • one year ago
  5. Azteck
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    The number 13 is a rational number because it's a whole number.

    • one year ago
  6. godorovg
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    yes 13 is right for 169

    • one year ago
  7. Azteck
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    That means option A is not irrational, thus not the correct answer.

    • one year ago
  8. Azteck
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    Option B is not irrational as well because that will give you 12. So is option C. That also gives you a whole number of 9.

    • one year ago
  9. Azteck
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    Tell me what option D would give me? @Yolo4mecuite

    • one year ago
  10. godorovg
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    option D is 12.5 for squr 156

    • one year ago
  11. Yolo4mecuite
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    Yeah ^^^^

    • one year ago
  12. Yolo4mecuite
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    So D is rational

    • one year ago
  13. godorovg
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    no we are looking for irrational

    • one year ago
  14. Yolo4mecuite
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    Yes sorry

    • one year ago
  15. Yolo4mecuite
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    12.5 is not s whole number so it is irrational

    • one year ago
  16. godorovg
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    I knew it was D, was just trying to teach

    • one year ago
  17. Yolo4mecuite
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    Oh ok Thank you! :)

    • one year ago
  18. godorovg
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    hope I helped not hindered here.

    • one year ago
  19. Azteck
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    12.5 is a rational number. That's a fraction with integers. The square root of 156 does not contain recurring numbers which means it's irrational.

    • one year ago
  20. godorovg
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    yep you are right :)

    • one year ago
  21. godorovg
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    good job..

    • one year ago
  22. SWAG
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    Nice Work!

    • one year ago
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