Has exactly one solution explain your reasoning

1. during first 10 seconds 2. between 10 seconds and 35 seconds 3. during 35 seconds to 40 seconds

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

Which ordered pair is the best estimate for the solution of the system of equations? the graph of the system of equations : y = 3/2x +6 and y=1/4x - 2 , -3) .5, -3.5) , -4) , -3.5)