What 25 percent of 31.25

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.

How can you find the magnitude of a vector, v = < x,y > , where the horizontal change is x and the vertical change is y?