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The number zz is irrational. Which statement about 3+z\sqrt{3} + z is true?\newlineChoices:\newline(A) 3+z\sqrt{3} + z is rational.\newline(B) 3+z\sqrt{3} + z is irrational.\newline(C) 3+z\sqrt{3} + z can be rational or irrational, depending on the value of zz.

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Q. The number zz is irrational. Which statement about 3+z\sqrt{3} + z is true?\newlineChoices:\newline(A) 3+z\sqrt{3} + z is rational.\newline(B) 3+z\sqrt{3} + z is irrational.\newline(C) 3+z\sqrt{3} + z can be rational or irrational, depending on the value of zz.
  1. Identify Type of Number: Identify whether 3\sqrt{3} is a rational or irrational number.\newlineThe square root of a non-perfect square is an irrational number.\newline3\sqrt{3} is an irrational number because 33 is not a perfect square.
  2. Consider Sum of Irrational Numbers: Consider the sum of two irrational numbers.\newlineIf zz is an irrational number and 3\sqrt{3} is also an irrational number, the sum of two irrational numbers is not necessarily irrational. It can be rational if the irrational parts exactly cancel each other out.
  3. Examine Possible Cases: Examine the possible cases for the sum of 3\sqrt{3} and zz. If z=3z = -\sqrt{3}, then 3+z=33=0\sqrt{3} + z = \sqrt{3} - \sqrt{3} = 0, which is a rational number. If zz is any irrational number that is not the negation of 3\sqrt{3}, then 3+z\sqrt{3} + z will be irrational because the sum of an irrational number and a rational number is irrational. Therefore, 3+z\sqrt{3} + z can be rational or irrational, depending on the value of zz.

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