Can the sides of a triangle have lengths 2, 5, and 9?

Help?

Which matrix multiplication is possible?

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?