Cho tam giác ABC , có AM là trung tuyến ứng với BC . Trên cạnh AB lấy điểm D và E sao cho AD=DE=EB . Đoạn CD cắt AM tại I . Chứng minh : a, EM song song với DC
b, I là trung điểm của AM
c, DC = 4DI

Anyone know? will mark brainliest if you're correct!

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

The probability that a student graduating from suburban state university has student loans to pay off after graduation is .60. if two students are randomly selected from this university, what is the probability that neither of them has student loans to pay off after graduation?