2. Một bình hình trụ có dung tích V = 3,6l chứa đầy nc ( ns và dầu 0 lẫn lộn vào nhau ). Tính khối lượng chất lỏng trong bình trong các TH : a, Thể tích nc bằng thể tích dầu b, Khối lương nc = KL dầu Bt rằng KL riêng của nc và dầy là : D1 = 1g/m^3 D2 = 0,8g / m^3

Turn these sentences into reported speech.(4) 31. He said, “I’m cutting off the main valve.” ________________________________________________ 32.Nam said, “my uncle often plants the vegetables in the afternoon.” __________________________________________________________ 33.“My uncle will not plant the vegetables tomorrow afternoon”, she said. ____________________________________________________ 34.“Mr and Mrs Pike have just read these newspapers”, Nga said. ___________________________________________________________ 35.She said, “I often listen to music at night.” _______________________________________________________ 36.Lan’s mother said, “ My daughter usually brushes her teeth before meals.” ___________________________________________________________ 37.They said, “We have to do the assignments now.” ________________________________________________________ 38.Lan says, “My sister seldom rides a bike to school.” _____________________________________________________ 39.They said, “Our teacher sometimes explains the difficult lesson.” __________________________________________________________ 40.Nam said, “ I am doing my homework now.” ___________________________________________

Turn these sentences into reported speech. (3) 21. He said, “I have a toothache.” ________________________________________________ 22. She said, “I’ll write him a prescription.” ________________________________________________ 23. They said, “We’re going to the drugstore.” ________________________________________________ 24. He said, “The doctor gave me some pills.” ________________________________________________ 25. She said, “I go to the supermarket every day.” ________________________________________________ 26. He said, “I have received the envelope.” ________________________________________________ 27. They said, “We visited Cannery Row.” ________________________________________________ 28. She said, “I feel very sick.”________________________________________________ 29. He said, “I bought some popcorn.”________________________________________________ 30. They said, “We’re flying to California.” ________________________________________________

Giúp mik câu 7,8 Mình cần gấp 😥😢 Help meeeee🙏❤ CÓ AI KHÔNG GIÚP MÌNH VỚI😓

Mọi người giúp em giải bài này vớiiiiiiiiiiiii ạ

giúp vs ạ cần gấp niều lắm em cảm ơn

Làm giúp mình với mình đang cần

Tính nhanh A=4/5+ (1/5-1/7)x2/7 Đ=1/2+5/6+11/12+19/20+...+89/90

Turn these sentences into reported speech. (2) 11.“ I will never see you again,” the boy said to the girl. → ___________________________________________________________ 12.He said to her, “You are my friend.” →___________________________________________________________ 13.Johnny said to his mother, “I don’t know how to do this axercise.” → ___________________________________________________________ 14.“We are waiting for the school bus”, said the chidren. → ___________________________________________________________ 15.Marry said, “My father died a year ago”. →___________________________________________________________ 16.John said, “I have finished studying my lesson”. →___________________________________________________________ 17.Mary said, “I can not go to the movies with you, John”. →___________________________________________________________ 18.“I shall expect to see you next Wednesday.” Mary said to her friend. →___________________________________________________________ 19. He said, “I don’t know what happened.” ________________________________________________ 20. She said, “I went to the doctor yesterday.” ________________________________________________

Giúp mik vs : cho đn mạch gồm 2 điện trở R¹ và R² mắc song song Đặt vào 2 đầu đn mạch 1 hiệu điện thế U ko đổi . Biết rằng R¹= nR² Hãy chứng minh rằng dòng điện I² qua R² lớn hơn dòng điện I¹ qua R¹ n lần