QuestionWhich set has no irrational numbers? $\{-5.15, \pi, 30\}$, $\left\{\frac{9}{2}, \sqrt{100}, 5.123\right\}$, or $\{\sqrt{80}, 100, 6.56\}$?

Studdy Solution
In the third set, $\sqrt{80}$ is the square root of a non-perfect square, which makes it an irrational number. So, this set contains an irrational number.
The set that does not contain any irrational numbers is $\left\{\frac{9}{2}, \sqrt{100},5.123\right\}$.