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Is the number −2+9-2 + 9 rational or irrational?\newlineChoices:\newline(A) rational\newline(B) irrational

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Full solution

Q. Is the number −2+9-2 + 9 rational or irrational?\newlineChoices:\newline(A) rational\newline(B) irrational
  1. Evaluate −2+9-2 + 9: Evaluate −2+9-2 + 9.\newlineAdd −2-2 and 99.\newline−2+9=7-2 + 9 = 7
  2. Add −2-2 and 99: We found: \newline−2+9=7-2 + 9 = 7\newlineIdentify whether −2+9-2 + 9 is a rational or irrational number.\newline77 is a whole number, and all whole numbers are rational numbers.\newlineTherefore, −2+9-2 + 9 is a rational number.

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