Cho phép chia 12:6.Hãy tìm một số sao cho khi lấy số bị chia trừ đi số đó. Lấy số chia cộng với số đó thì được 2 số mới sao cho hiệu của chúng bằng không.

Tìm n ϵ N, biết 3n.2n = 216, kết quả là: A. n = 6 B. n = 4 C. n = 2 D. n = 3

Giai bất phương trình 1.(x+2)^2 - 4 >= (x+3)(x+5)-x

3. Years ago, some people didn’t used to go to the doctor when they were ill. 4. I sometimes wish that I will have another car. 5. It is a dull evening . We have nothing doing 6. All the athletes are trying to run as fastly as they can. 7. Many people think this novel writing by Charles dickens. 8. One of the fastest growing cities are Mexico City. 9. If today is suday, I would go out with my friends 10. Unless you didn’t come here today,We wouldn’t wait any more. 11. Many teachers have devoted all their lives to teaching so teaching is not well paid job. 12. Peter doesn’t likes football. He never misses a football match. 13. By the time the police come, the robber had run away. 14. Have you ever read any novels writing by Jack London? 15. Four hundred miles are too much for me to drive in one day. 16. Before he came here, they left their house. 17. Gets the bad news from her parents, Mary immediately burst into tears. 18. Mr. Pike stopped his car, got out and looking around. 19. While many other students are working hard in the library to prepare for the final exam, Peter was working on the field with his ball. 20. It has been nearly for 10 years when the house was last giup minh voi cac ban oi

3. Các hồ nhân tạo ở Đông Nam Bộ là: A. Trị An, Thác Bà B. Trị An, Hòa Bình C. Trị An, Dầu Tiếng D. Trị An, Hoàn Kiếm Giup minh nha

mn jup mình bài 1 và bài 2 vs ạ tks mn!

Một người khối lượng m = 40kg đứng trên thuyền nặng 160 kg... Giúp mình với ạ

Học sinh lớp 6C khi xếp thành hàng 2, hàng 3 đều thừa 1 người. hàng 4, hàng 8 đều thừa 3 người. Biết số học sinh lớp đó trong khoảng từ 35 đến 60. Tính số học sinh lớp 6c? mik đg cần gấp nhé đáp số đúng là 43 hs nhé

helpppppppppppppp meeeeeeeeeeeee

30. Instead of we eat at home, we went to the restaurant. 31. I was listening to the radio when the door bell ring. 32. Smoking is harmful not only to smokers so to non-smokers. 33. Before the combine harvester had invented farmers had to cut and thresh rice by hand. 34. John said he will invite some of his friends for dinner so Mary had to buy some more food and drink. 35. Since fireworks are danger, many cities have laws preventing businesses from selling. 36. Let you and I consider the problems carefully. 37. He has learnt to drive when he was twenty. 38. Open the letter from her mother, she felt very happy. 39. Many scientists have tried to unlocking the genetic code. 40. Before go out , remember to turn off the lights. 42. I was walking along the road when I realized that there has been a man following me. 43. Peter has written the composition for 3 hours and he has not finished it yet. 44. Most lasers are be used in medical and scientific fields. 45. Please arrive on time in order to we will be able to start the meeting punctually minh dang can gap giup minh voi !