Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Which of the following is a rational number?\newlineChoices:\newline(A) 89\frac{8}{9}\newline(B) 3\sqrt{3}\newline(C) Ο€\pi\newline(D) 2\sqrt{2}

Full solution

Q. Which of the following is a rational number?\newlineChoices:\newline(A) 89\frac{8}{9}\newline(B) 3\sqrt{3}\newline(C) Ο€\pi\newline(D) 2\sqrt{2}
  1. Definition of Rational Number: A rational number is a number that can be expressed as the quotient or fraction pq\frac{p}{q} of two integers, where pp and qq are integers and qq is not zero. Let's evaluate each choice to see if it fits this definition.
  2. Choice (A) Evaluation: Choice (A) is 89\frac{8}{9}. This is a fraction where both the numerator (88) and the denominator (99) are integers, and the denominator is not zero. Therefore, 89\frac{8}{9} is a rational number.
  3. Choice (B) Evaluation: Choice (B) is 3\sqrt{3}. The square root of 33 is an irrational number because it cannot be expressed as a fraction of two integers. It is a non-repeating, non-terminating decimal.
  4. Choice (C) Evaluation: Choice (C) is Ο€\pi (pi). Pi is an irrational number because it cannot be expressed as a fraction of two integers. It is a non-repeating, non-terminating decimal that represents the ratio of the circumference of a circle to its diameter.
  5. Choice (D) Evaluation: Choice (D) is 2\sqrt{2}. The square root of 22 is also an irrational number because it cannot be expressed as a fraction of two integers. It is a non-repeating, non-terminating decimal.

More problems from Domain and range of quadratic functions: equations