Someone answer fast I am being timed

C.

Step-by-step explanation:

Let's see what we can take out of the radical. If there are any perfect squares under there, we can bring them out.

80 = 16 * 5!

16 is a perfect square. (4 * 4 = 16.) Our new expression is

Now we can also take out i, which is the square root of -1, and put it outside. We cannot take out -1. That's not possible. Take out i instead.

C. is the answer.

18.8cm hope i at all

step-by-step explanation:

38.6°

step-by-step explanation:

resultant is 10 pound

smaller force = 8 pound

angle formed = tan⁻¹(

                        =tan⁻¹(

                          =tan⁻¹(0.8)

                        =38.6°