Answer:
An approximate decimal answer is 8.944, so then you have to round up so it would be 9.0
Step-by-step explanation:
[tex] \sqrt{80} = \sqrt{16 \times 5} = \sqrt{16} \sqrt{5} = 4 \sqrt{5} \\ \\ 4 \sqrt{5} = 4 \times 2.236 = 8.944[/tex]
so; 8.9 = 9
I hope I helped you^_^
