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Which interval notation represents the set of all numbers from 1 to 9 , not inclusive? [1,9] (1,9] [1,9) (1,9)

Which interval notation represents the set of all numbers from 11 to 99 , not inclusive?\newline[1,9] [1,9] \newline(1,9] (1,9] \newline[1,9) [1,9) \newline(1,9) (1,9)

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Full solution

Q. Which interval notation represents the set of all numbers from 11 to 99 , not inclusive?\newline[1,9] [1,9] \newline(1,9] (1,9] \newline[1,9) [1,9) \newline(1,9) (1,9)
  1. Check Interval Notations: Check the meaning of interval notations. Square brackets [[ ] mean inclusive, parentheses ()( ) mean exclusive.
  2. Determine Notation for 11: Determine the correct notation for 11.\newlineSince 11 is not included, use ()() instead of [\].
  3. Determine Notation for \(9: Determine the correct notation for 99.\newlineSince 99 is not included, use )) instead of ]].
  4. Combine Notations: Combine the notations for 11 and 99. The correct interval notation is (1,9)(1,9).

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