A principal receives reports from teachers via email. The probability model describes the number of emails the principal may receive in a day. Emails Received 0 1 2 3 4 5 P(X) 0.05 0.15 0.35 0.25 0.15 0.05 How many emails would you expect the principal to receive each day? (2 points) 3.9 3.65 3.25 2.9 2.45

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.

What is the result of the following division?