Làm nhanh giúp mk nha đang cần gấp

1.Tính nhanh: 1-2-3+4-5+...+ 2006-2007+2008 2.Tìm x a. x+49= 10-27 b. x-4=5+9 c. 2+ x= 5+(-29) d.15-x= -1-17 3. Tìm x sao cho x-1963 là số nguyên âm lớn nhất

bài 14: hãy tính a) khối lượng 0,5 mol Cl2; 0,75 mol Al2O3; 0,5 mol Fe2O3 b) số mol của 171 g Al2(SO4)3; 152g FeSO4; 300g Fe2(SO4)3

Lâu chưa on nhớ quá vẽ anime đi mọi người, đi để trở về

Cô duyên Exercise 2: Đoạn văn sau có 5 lỗi sai. Hãy tìm và sửa chúng. I'm going to tell you about someone who has influence my life in an important way. This person is actually my father. I am 20 years old so of course I have known him for 20 years as he's my father. We still live together, along with my mother, my older brother and younger sister. One of his best qualities is that he's get a lot of drive and is ambitious, which means that he's achieved a lot in his life. He started out working for a building company but he took it on himself to get professionally qualified. n the evening he started take classes to qualify as a surveyor. This took him many years but eventually he got there and started working for the same company as one of their surveyors. But he did really well as he eventually became a senior partner in the business, and then just a few vears ago he sets up his own business wth oneiof the other partners. So now he has hs own company and they employ about fifteen ot really proud of what le. So fm

nguyên nhân nào gây ra hiện tượng ngừng hô hấp?

viết 1 bài văn ngắn về cuộc sống,xác định các trạng ngữ có trong đoạn văn và giải nghĩa

1. tìm x : 20,118:x =9,8 2. Tính thuận tiện : 3,45:0,5+3,45:0,2+3x3,45

tìm app nào free cho tui dùng trên mt nha ngoài paint ra nhé haizz free nha

ai là nv chính của tác phẩm làng