Question

Help? https://www.connexus.com/content/media/507563-672011-90911-AM-1181838700.png

Answer 1

You could rewrite it as
\[\sqrt{49 / 2}\]

49 / 2 = 24.5 ~ 25
\[\sqrt{25} = 5 \]
Which means that \[\sqrt{49 / 2}\] is about 5 (4.95...)

If you want an exact answer you could start by solving the top \[\sqrt{49} = 7\]
And get the final answer:
\[7/\sqrt{2}\]