Ed is on a road trip. he has already traveled 208 miles and is driving at a rate of 70 miles per hour. which equation could be used to find how many hours, x, ed has left in his road trip if he is traveling 695 total miles?
a.
70x + 208 = 695

b.
208x + 70 = 695

c.
208x + 695 = 70

d.
70x + 695 = 208

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 b suppose 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 c now try a numerical problem. what is the direction of the vector w = < -1, 6 > ?