Câu 1 .Gọi M, N lần lượt là trung điểm của các đoạn thẳng AB và CD . Chứng minh rằng MN =1/2(AD+ BC )

Acarnival sold tickets for $1.50 for adults and $1.00 for students. there were 54 tickets sold for a total of $70.50. write a system of equations to represent the number of adult tickets,x, and the number of student tickets,y. find the solution and explain what it means. i'll you if you me

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

Madeline takes her family on a boat ride. going through york canal, she drives 6 miles in 10 minutes. later on as she crosses stover lake, she drives 30 minutes at the same average speed. which statement about the distances is true?