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uiz 9
rted: 19 Aug at 21:52
uiz instructions
are allowed up to two attempts. Only your highest score across the attempts will be counted.
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Question 2
0.5 pts
If \( x \) is a rational number and \( y \) is a real number, which of the following can we conclude with certainty? (meaning, which of the following will be true for any choice of the rational number \( x \) and the real number \( y \) ?)
Note: there can be one or more correct answers.
\( x y \) is a rational number
\( x y \) is an irrational number
\( x+y \) is a rational number
If we also know that \( y \) is an irrational number, then \( x+y \) is an irrational number
\( x-y \) is a real number
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