5 sao dành cho bn nào làm nhanh nhất nhưng phải đúng

Cho tam giác ABC vuông tại A , trung tuyến AM . Qua A kẻ đường thẳng vuông góc với AM cắt đường thẳng vuông góc với BC kẻ qua B tại D , cắt đường thẳng vuông góc với BC tại E . Tia EM cắt tia DB ở I . Gọi P và Q lần lượt là giao điểm của AB và AC với ME . Chứng minh rằng : a) Tam giác MCE = Tam giác MBI b) Tam giác DIE cân c) DE = BD + CE d) PQ song song BC và PQ = 1/2 BC

trắc nhiệm: 1.cho số hưu tỷ a/b câu nào sau đây là đúng: a, a/b là số dương nếu a âm và b âm b,a/b là số dương nếu a dương c, a/b là số dương nếu b dương d,a/b là số âm nếu a âm

Calli chữ : Yêu thầy Yêu cô NL: Tui muốn đi hc lại qué trời ưi

giúp mình bài này với các bannn

Tìm MinA=x^2-4x+y^2+6y+15 Tìm MaxB=(3-x)(x+5)

Viết đv 12 câu kiểu diễn dịch trình bày cảm nhận về khổ 2 bài thơ “Nhớ rừng” của Thế Lữ, đoạn văn có sử dụng câu ghép, câu cảm thán.

Lập trình đơn giản. Không dùng hàm nếu không cần nhé

mọi người giúp mình với 1. “Open the door,” he said to them. -He told them________________________________________________ 2. “Where are you going?” he asked her. -He asked her where________________________________________________ 3. “Which way did they go?” he asked. -He asked________________________________________________ 4. “Bring it back if it doesn’t fit”, I said to her. -I told________________________________________________ 5. “Don’t try to open it now,” she said to us. -She told________________________________________________ 6. “Is it going to be a fine day today?” I asked her. -I asked her________________________________________________ 7. “He’s not at home”, she said. -She said that________________________________________________ 8. “Is the bus station far away?” the girl asked. -The girl wanted to know________________________________________________ 9. “Don’t stay out late, Ann” Tom said. -Tom told Ann________________________________________________ 10. “Please let me borrow your car,” he said to her. -He asked________________________________________________ 11. “Jean, have you seen my gloves?” Thomas asked. -Thomas asked Jean________________________________________________ 12. Don’t leave the window open, Mary”, I said. -I told Mary________________________________________________ 13. “I’ll have a cup of tea with you,” she said. She said that________________________________________________ 14. “I’ll pay him if I can” she said. -She said that________________________________________________ 15. “What are you going to do next summer?” she asked. - She asked us________________________________________________ 16. “I’ll phone you tomorrow,” he told Jack. -He told Jack that________________________________________________ 17. “Can I sit beside you, Jean?” Tom asked. -Tom asked Jean________________________________________________ 18. “I want a camera for my birthday,” he said. -He said that________________________________________________ 19. “Don’t keep the door locked,” he said to us. -He told us________________________________________________ 20. “How long are you going to stay?” I asked him. -I asked him how long________________________________________________ 21. “Are you going by train?” she asked me. -She wanted to know________________________________________________ 22. “Don’t use too much hot water,” she said to us. -She asked us________________________________________________ 23. “Will you come to my party?” she said to me. -She invited me________________________________________________ 24. “Don’t do it again,” she said to them. She told them________________________________________________ 25. “ Did Mr Brown send the potatoes to you?” she asked. -She asked________________________________________________ 26. “Don’t get your shoes dirty, boys,” she said. -She told.________________________________________________ 27. “What do you want for lunch today, Peter?” Mary asked. -Mary asked________________________________________________ 28. “Can I borrow your typewriter, Janet?” asked Peter. - Peter asked if ________________________________________________ 29. “Why didn’t I get a computer before?” thought the office manager. -The office manager wondered________________________________________________ 30. “You had better not lend him any more money, Elizabeth,’’ said John. -John advised Elizabeth________________________________________________ 31. “You stole my best cassette, Amanda!” said John. -John accused________________________________________________ 32. “ You damaged my bicycle, John!” said Mary. -Mary accused________________________________________________ 33. “When was your little boy born?” said the nurse to Mrs. Bingley. -The nurse asked Mrs. Bingley________________________________________________ 34. “You should take more exercise, Mr. Robert,” the doctor said. -The doctor advised________________________________________________ 35. “Will I find a job?”, Tim said to himself. -Tim wondered________________________________________________

một người đi xe đạp đi nửa quãng đường đầu với vận tốc 24km/h đi tiếp nửa còn lại với vận tốc nào đó chưa biết biết vận tốc trung bình 16km/h hãy tính vận tốc để đi nữa đường còn lại