Which of the following polynomials has solution that are real numbers ?

a) x^2-6x+13
b) x^2+4x+3
c) -x^2-9x-10
d) x^2+2x+3

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.

Can someone pls ! pls answer all. no explanation needed..

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.