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The number qq is irrational. Which statement about q+33q + \sqrt{33} is true?\newlineChoices:\newline q+33q + \sqrt{33} is rational.\newline q+33q + \sqrt{33} is irrational.\newline q+33q + \sqrt{33} can be rational or irrational, depending on the value of qq.

Full solution

Q. The number qq is irrational. Which statement about q+33q + \sqrt{33} is true?\newlineChoices:\newline q+33q + \sqrt{33} is rational.\newline q+33q + \sqrt{33} is irrational.\newline q+33q + \sqrt{33} can be rational or irrational, depending on the value of qq.
  1. Identify Type of Number: Identify whether 33\sqrt{33} is a rational or irrational number.3333 is a non-perfect square, which means that its square root cannot be expressed as a ratio of two integers. Therefore, 33\sqrt{33} is an irrational number.
  2. Sum of Irrational Numbers: Consider the sum of two irrational numbers, qq and 33\sqrt{33}. If qq is any irrational number that is not the additive inverse of 33\sqrt{33}, then their sum is also irrational. This is because the sum of an irrational number and a rational number is irrational, and the sum of two irrational numbers is generally irrational unless they are additive inverses.
  3. Special Cases Consideration: Examine the special cases where qq could be the additive inverse of 33\sqrt{33}. If q=33q = -\sqrt{33}, then q+33=33+33=0q + \sqrt{33} = -\sqrt{33} + \sqrt{33} = 0, which is a rational number. This shows that there is at least one value of qq for which q+33q + \sqrt{33} is rational.
  4. Final Conclusion: Determine the correct statement based on the previous steps.\newlineSince q+33q + \sqrt{33} can be rational if qq is the additive inverse of 33\sqrt{33}, but is generally irrational for other values of qq, the correct statement is that q+33q + \sqrt{33} can be rational or irrational, depending on the value of qq.

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