RustedHalo11 RustedHalo11
  • 07-10-2020
  • Mathematics
contestada

Is -9.2222 a irrational number? Or rational? Im so confused

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sqdancefan
sqdancefan sqdancefan
  • 08-10-2020

Answer:

  rational

Step-by-step explanation:

Any number that can be written with a finite number of digits is rational. The given number is rational. (It has 5 digits.)

__

Any repeating decimal is rational.

If this were -9.2222..., it would be -9 2/9 = -83/9, also a rational number.

_____

A number is irrational if it cannot be represented exactly as a decimal or repeating decimal. That is, its decimal fraction part continues forever without repeating.

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