Can you please help me with this? 1256SMiles What is the radius of the area used. 3.14

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

Examine the following sets of events. set a: {1, 5, 7, 9, 14} set b: {2, 5, 6, 8, 14, 17} which of the following represents the intersection of set a and set b ? {∅} {5, 14} {1, 2, 5, 6, 7, 8, 9, 14, 17} {1, 2, 6, 7, 8, 9, 17}

Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your