1. The problem statement, all variables and given/known data Two vectors are given by a = 2.3 x - 9.7 y and b = -18.6 x + 2.8 y. What is the magnitude of a? What is the angle between vector b and the positive x-axis? What is the magnitude of the vector a + b? 2. Relevant equations I don't know 3. The attempt at a solution None. I don't need the answer I just need to know like the steps to do it. I missed a class and don't have a book so I don't know how to do this >.< Any help is appreciated.