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haileynicole

  • 3 years ago

Name the sets of numbers to which each number belongs.. (rational, real, irrational, integers, whole and natural.) 1.) -4/3 how would i figure this out explain please

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  1. barrycarter
    • 3 years ago
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    Hint: what are the definitions of each type of number?

  2. haileynicole
    • 3 years ago
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    is it inverse?

  3. barrycarter
    • 3 years ago
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    No, I mean: what's a rational number? what's an irrational number, and so on?

  4. aliceglass20
    • 3 years ago
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    Here are some quick definitions: Integer: Whole number (ie number with no decimal parts). Natural number: Any whole number that is positive and not zero (eg: 1, 2, 3, 4...) Rational Number: Number that can be written as a fraction of two integers. Irrational Number: A number that CANNOT be written as a fraction of two integers. Real Number: At the moment, it's pretty much any number you can think of. So every number is a real number (for now). You'll find on later in algebra that there are other types of numbers that are not real numbers.

  5. haileynicole
    • 3 years ago
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    so its rational?

  6. barrycarter
    • 3 years ago
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    Yes, since it's -4 (an integer) over 3 (another integer)

  7. haileynicole
    • 3 years ago
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    okay thank you. and then the book has an example of the square root of -144= -12 belongs to the set of integers, the set of rationals, and the set of reals... do i need to find a number like they did? (-12)

  8. barrycarter
    • 3 years ago
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    Ummm, the square root of (-144) doesn't exist. Did you mean minus the square root of plus 144?

  9. haileynicole
    • 3 years ago
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    minus the square root. sorry. and i looked in the back of the book and got it figured out. thanks for the help!

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