Answer:
3.3
Step-by-step explanation:
Because √11 cannot be re-written as the ratio of two integers, it's irrational.
Using a calculator, we find that √11 = 3.3166. We must round this off to the nearest tenths place: 3.3.
√18
Separate it into its greatest factor that’s a perfect square and it’s other factor
In this case the best choice is 9 and 2
√9 √2
Simplify the perfecto square to get the answer
3 √2
√