Aforest has a population of cougars and a population of rabbits. let x represent the number of cougars (in hundreds) above some level, denoted with 0. so x = − 3 corresponds not to an absence of cougars, but to a population that is 300 below the designated level of cougars. similarly, let y represent the number of rabbits (in hundreds) above a level designated by zero. the following system models the two populations over time: x ' = − 0.5 x + y y ' = − x + 0.5 y solve the system using the initial conditions x ( 0 ) = 0 and y ( 0 ) = 1 . x

I've been working on this for a few days and i just don't understand, it's due in a few hours. you.the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α.part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part bsuppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i.e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case.part cnow try a numerical problem. what is the direction of the vector w = < -1, 6 > ?