No, it is an imaginary number.
Can't take the square root of a negative number without creating a method termed an imaginary number, which is the square root of -1 which they have used " i " to signify.
Then square root of -11.2 would be written Sqrt(11.2)i. The Sqrt(11.2) = 3.3466
so the answer is 3.3466i
You'll see how to set up a table, choose appropriate x-values, plug those values into the equation.
Answer:
22
Step-by-step explanation:
400/18=22.222222222
Round to 22
B because it is the answer