Solve the system. Explain your choice of solution method. 5x - 2y = 2
2x - y = - 46
Explain your choice of solution method.
O A. The substitution method is the best choice because one of the equations is already solved for the variable.
OB. The substitution method is the best choice because one of the variables in one equation has a coefficient of 1
O C. The elimination method is the best choice because the coefficient of x in the second equation is a multiple of the coefficient of x in the first equation
OD. The substitution method is the best choice because both of the equations are already solved for constants
O E. The elimination method is the best choice because the coefficient of y in the second equation is a multiple of the coefficient of y in the first equation

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 > ?