6.34 is the correct answer. You can also round up to the nearest tenths is 6.30 its going to be stay. If the digit has 5, 6, 7, 8, and 9 and its going to be round up to 6.40. [tex]\sqrt{40.23}=6.34=6.30[/tex]. Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie
