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Which of the following is a whole number?\newlineChoices:\newline(A) 00\newline(B) 5\sqrt{5}\newline(C) Ο€\pi\newline(D) βˆ’9-9

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Q. Which of the following is a whole number?\newlineChoices:\newline(A) 00\newline(B) 5\sqrt{5}\newline(C) Ο€\pi\newline(D) βˆ’9-9
  1. Identify Whole Number: We need to identify which of the given choices is a whole number. A whole number is a non-negative integer, which includes 0,1,2,3,0, 1, 2, 3, and so on.
  2. Evaluate Choices: Let's evaluate each choice:\newline(A) 00 is a whole number because it is the smallest non-negative integer.
  3. Choice (A): (B) The square root of 55 (5\sqrt{5}) is not a whole number. It is an irrational number because it cannot be expressed as a fraction of two integers and its decimal representation is non-terminating and non-repeating.
  4. Choice (B): (C) Pi (Ο€\pi) is not a whole number. It is an irrational number known for being the ratio of the circumference of a circle to its diameter, and it also has a non-terminating and non-repeating decimal representation.
  5. Choice (C): (D) –9–9 is not a whole number. Although it is an integer, whole numbers are defined as non-negative, and –9–9 is negative.
  6. Choice (D): Based on the evaluations, the only whole number from the choices is (A)0(A) 0.

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