Jovan needs to buy a package of ham for $5, a package of cheese for $3, and a loaf of bread for $4 to make lunch. jovan has a coupon that gives him x percent off on a package of cheese. he has a second coupon that gives him y percent off on a loaf of bread. he has a third coupon that gives him z percent off on his total purchase. jovan cannot combine the coupon for the total purchase with the other two coupons. these expressions give both possibilities for the total cost of jovan's purchase after the coupons are applied. the variables represent percentages as decimals. (1−x)3+(1−y)4+5 (1−z)(3+4+5) which part of the expression represents the price of the ham, the cheese, and the bread before the total discount is applied? 3 + 4 + 5 (1−z) 4(1−y) (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 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 > ?