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, 2020

Algebra Difficulty 1.2 Junior Find the answer Canada

The value of $\sqrt{\dfrac{\phantom{\big(}\!\!\sqrt{81}+\sqrt{81}}{2}}$ is

$3$
$18$
$27$
$81$
$162$

Your answer

A number or a short expression. Fractions can be typed as 3/2, and spacing doesn't matter.

Solution

Calculating, $\sqrt{\dfrac{\phantom{\big(}\!\!\sqrt{81}+\sqrt{81}}{2}} = \sqrt{\dfrac{9+9}{2}} = \sqrt{9} = 3$ .

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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project.