Select the correct answer. ria is an indian student who was admitted to a us university. her annual tuition is $42,000. she has to pay her tuition fees in us dollars. she needs to calculate how many indian rupees she will need to buy one dollar. the dollar to rupee exchange rate is 63.76 and rupee to dollar exchange rate is 0.015. how many indian rupees will ria need to buy one dollar? a. 50.00 rupees b. 56.00 rupees c. 63.76 rupees d. 76.63 rupees

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 > ?