cho biết CTHH của nguyên tố X với O và hơp chất nguyên tố Y với H XO,YH2 công thức đúng là ( giải thích từng bước

Calli : Chán Phụ Huynh :)) bất lực cha mẹ đặt đâu con ở đó

P= -2x^2+3x+1 Q= -5x^2 -4x-19/5 Tìm giá trị lớn nhất

cho tứ diện S.ABC.gọi M,N lần lượt là điểm nằm trên cạnh SA,SC và P là điểm trong tam giác ABC.tìm thiết diện của hình chóp và mặt phẳng (MNP)

Tính số học sinh 7A và 7B biết 7A ít hơn 7B là 5 bạn và lớp 7A và 7B tỷ lệ với 8 và 9. lm hộ mik mai mik pk nộp r

cho tam giác ABC có ba góc nhọn, trực tâm H. Người ta dựng hình bình hành BHCD và gọi I là giao điểm của 2 đường chéo. a, CMR : tư giác ABDC nội tiếp được. b, So sánh góc BAH và góc OAC (O là tâm đường tròn ngoại tiếp tam giác ABC) c, Gọi G là giao điểm của AI và OH. CMR: G là trọng tâm tam giác ABC

1.All houses in that village are______ decorated (beauty) 2.Mexico achieved_______ from France totally in 1954(depend) 3.there were more than fifty______ in the race this morning(compete) 4.The health report stresses the_____ of fresh food in a diet(important) 5.He has been criticized for his______ in foreign affairs(experience)

Hướng dẫn Calli ở điện thoại trên app ibis Paint , cách đổ bóng luôn Trl = hình ảnh nhé 🙂🙂 :>> Chi tiết = HN NL : ko trl đc thì vào chơi đi 👉👈

Combine these pairs of sentences, using who, which, where or whose: 1.Lan is my classmate. She lives near my grandparents’ house. 2.The young man is talking to our teacher . He is Ba’s brother. 3.We visited the monument. It was built a hundred years ago. 4.The victims of the flood need help. They were half-starved for many days. 5.The baby was still alive. He was lifted and put down a hundred meters away by a tornado. 6.The weather forecast program takes place at 8 p.m everyday. Some people like to watch it. 7.Hoa’s parents buy a lot of candles and food. They will use them in case the market is closed because of the hurricane. 8.Mr Phong is our geography teacher. He has been teaching in our school for ten years. 9.Nam is very intelligent. He learns in our class. 10.Minh is one of my best friends. I have known her since we were at school. 11.The new stadium will be opened next week. It can hold 120.000 people. 12.My mother works as an engineer. She is an excellent cook. 13.His book became the best seller. It was published last year. 14.Neil Armstrong lived in the USA. He walked on the moon.

II. Complete the following sentences with an appropriate form of the given word. 1. Good (educate)…………………………. can help people get rid of taking risk. 2. Are there any youth (organize)………………………. in your country? 3. These plants can grow (nature)………………………. in poor soils. 4. The teacher asked the students to choose an (act)……………….. partner for the next 5. “When is the (enroll)……………….. in this school?” “It’s the first week of August”. 6. “Who is your favorite (act)…………………………., Lan?” “I think it’s Tom Hank”. 7. If you want to be a member of the club, please fill out this (apply) ……………………..form. 8. What is the (deep)……………………… of the river? 9. There is some (similar)……………………….. in the way the two groups work. 10. He can’t get higher education because of his (poor)...................... hãy giải thích