90 times 78+ 53-20 Divied by 2 = ?

Acoin is tossed twice. let e e be the event "the first toss shows heads" and f f the event "the second toss shows heads". (a) are the events e e and f f independent? input yes or no here: yes (b) find the probability of showing heads on both toss. input your answer here: preview

Find the cosine function that is represented in the graph.

Evaluate the expression. (9 + 5)(3 + 2)0