Astore specializing in mountain bikes is to open in one of to malls. if the first mall is selected, the store anticipates a yearly profit of $1,500,000 if ucessful and yearly loss of $500,000 otherwise. the probabilitiy of sucess is 1/2. if the second mall is selected, it is estimated that the yearly profit will be $1,000,000 if successful; otherwise, the annual loss will be $300,000. the probability of success at the second mall is 3/4
a. what is the expected profit for the first mall?
b. what is the expected profit for the second mall?
c. which mall should be chosen in order to maximise the expected profit?
pick of the
1. the first mall should be chosen in order to maximize profit
2. the second mall should be chosen in order to mazimise profit
3. either of the two malls may be chosen; the profit will be the same

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 > ?