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The number x x is irrational. Which statement about x+11 x + \sqrt{11} is true?\newlineChoices:\newline(A)x+11 x + \sqrt{11} is rational.\newline(B)x+11 x + \sqrt{11} is irrational.\newline(C)x+11 x + \sqrt{11} can be rational or irrational, depending on the value of x x .

Full solution

Q. The number x x is irrational. Which statement about x+11 x + \sqrt{11} is true?\newlineChoices:\newline(A)x+11 x + \sqrt{11} is rational.\newline(B)x+11 x + \sqrt{11} is irrational.\newline(C)x+11 x + \sqrt{11} can be rational or irrational, depending on the value of x x .
  1. Identify Type of Number: Identify whether 11\sqrt{11} is a rational or irrational number. 1111 is a non-perfect square, which means that its square root cannot be expressed as a ratio of two integers.
  2. Consider Sum of Irrational Numbers: Since 11\sqrt{11} is an irrational number, we need to consider the sum of two irrational numbers, xx and 11\sqrt{11}. The sum of two irrational numbers can be either rational or irrational, depending on the specific numbers involved.
  3. Case: Negative of 11\sqrt{11}: Consider the case where xx is the negative of 11\sqrt{11}. In this case, x+11x + \sqrt{11} would equal 00, which is a rational number.
  4. Case: xx is any Irrational Number: Now consider the case where xx is any irrational number that is not the negative of 11\sqrt{11}. In this case, x+11x + \sqrt{11} would remain irrational, as the sum of an irrational number and a non-identical irrational number is irrational.
  5. Conclusion: Since we have found that x+11x + \sqrt{11} can be rational in some cases and irrational in others, depending on the value of xx, the correct statement is that x+11x + \sqrt{11} can be rational or irrational, depending on the value of xx.

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