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Questions and Answers
Which of the following is an irrational number?
Which of the following is an irrational number?
- $\sqrt{81}$
- $4/9$
- $\sqrt{5}$ (correct)
- $4/5$
When simplified, $2-\sqrt{3}$ is equal to
When simplified, $2-\sqrt{3}$ is equal to
- $1/8$
- $-\sqrt{8}$ (correct)
- $5\sqrt{6}$
- $\sqrt{30}$
$\sqrt{10} \times \sqrt{15}$ is equal to
$\sqrt{10} \times \sqrt{15}$ is equal to
- $3\sqrt{2}-5$
- $\sqrt{3}+\sqrt{5}$
- $\sqrt{3}-\sqrt{5}$
- $32\sqrt{2}$ (correct)
The simplest rationalizing factor of $\sqrt{3}+\sqrt{5}$ is
The simplest rationalizing factor of $\sqrt{3}+\sqrt{5}$ is
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