Question

PLEASE ESTIMATE.
√80 ≈

Answer 1

An approximate decimal answer is 8.944, so then you have to round up so it would be 9.0

Explanation:

Answer 2

`√(80) = √(16 * 5) = √(16) √(5) = 4 √(5) \\ \\ 4 √(5) = 4 * 2.236 = 8.944`

so; 8.9 = 9

I hope I helped you^_^