What is 3(t+2v) ?? Please and thank you

(40 points) i need some . an answer definition is appreciated as well.

Find the given elements if matrix d:

Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.