Tìm nghiệm nguyên của phương trình sau: $x ^ 3 + y ^ 3 + 5 (x + y)xy = 8 \sqrt{7 (x ^ 2 + y ^ 2) } - 8 $

Ba xe o tô chở 147 học sinh đi tham quan. Hỏi mỗi xe chở bao nhiêu học sinh? Biết rằng 2/3 số học sinh xe thứ nhất bằng 3/4 số học sinh xe thứ hai và bằng 4/5 số học sinh xe thứ ba.

giúp e với ạ...Sắp nộp rồi... Exercise 5. Write sentences, using the words given. 1. She/ 13 years old/ ,and /she/ now/grade 8. ____________________________________________________________________ 2. She/have/ younger brother/,and/ his name/ Bruce Walkers. ____________________________________________________________________ 3. My father/ work/ our farm / the countryside. ____________________________________________________________________ 4. How many /orange/ there / the bag?cheapest fry most chopsticks rest waiter at care menu peel ____________________________________________________________________ 5. Ao dai / usually /wear / young women. ____________________________________________________________________ 6. Some students /offered /scholarships / study /abroad. ____________________________________________________________________ 7. My mother /do/ the housework/, and /she/ help/ the farm. ____________________________________________________________________ 8. It / easy/ find/ apartment / Ha Noi. ____________________________________________________________________ 9. The puppets /support/by /strings /under/ water. ____________________________________________________________________ 10.I / looking/ forward to/ see/ you/ there. ____________________________________________________________________

VIII. Put the verbs in brackets in the correct tense form. 1. Does your brother like (listen)...... to music in his free time? 2. I think in the future, more people (enjoy) ..... going out by bicycles. 3. My father says when he’s retired, he (go) ....... back to his village to do the gardening. 4. We are planting trees around our school now. Our school (be)...... surrounded by a lot of green trees. 5. Lan says she loves collecting pens but she (not/continue)........ this hobby from next year. 6. You (think) ........ collecting stamps costs much money? 7. My father thinks mountain climbing (be)....... more dangerous than skating. 8. Every year, my mother (give) ..... me a nice doll on my birthday. 9. My brother (not like)....... collecting stamps, he likes collecting glass bottles. 10. My sister likes (cook) ......... very much. She can cook many good foods. I. Complete the sentences with the correct form of “used to” and the verb in bracket. 1......... (you/ enjoy) maths at school? 2. I...... (not like) flying, but I love it now. 3. We ....... (be) friends, but we don’t get on now. 4. ....... (John/ work) for IBM before he came here? 5. Winters ......... (not/ be) as cold as they are now. 6. She......... (live) with her mother, but now she lives with her father. 7. I........ (not do) any exercise. 8............ (he/ play) for Manchester United?

Nêu tác dụng của biện pháp tu từ điệp ngữ trong những câu văn sau: “Vậy mà giờ đây,anh em tôi sắp phải xa nhau. Có thể sẽ xa nhau mãi mãi. Lạy trời, đây chỉ là một giấc mơ. Một giấc mơ thôi. ”

EXERCISE I: Finish the second sentence in such a way that it means exactly the same as the first one:) 1.Please don't interrupt me when I'm talking. I'd rather.............................. 2. He didn't succeed in his career until he was 50. It wasn't............................... 3. He has been a journalist for 10 years. His career............................... 4. As Michael became more famous, it was more difficult for him to advoid the newspaper reporters. The more................................. 5. I regret saying that to him. I wish...................................... 6. ''If I were you, I would phone her immediately'' . John said to Bill John........................................ 7. I'm sure she didn't see a ghost. She can't .............................. 8. He doesn't know much about life in America. Little..................................... 9. Despite his illness, he went to the station with his friends. Even though .......................... 10. We have a six deadline for this work. This work...................................... EXERCISE II: Use the following words or phrase to write complete sentences:)) 1. We/know/other/since/children. 2. Most/people/invite/reception/old/friends. 3. Please/pay/attention/what/I/say. 4. It/about/time/you/house/repainted. 5. I/wish/stop/stick/nose/people's business. 6. London/stand/Thames/divide/2 equal parts. 7. He/ insist/mother-in-law/restaurant. 8. When/we/get/home/children/probably/watch/television. 9. Reference book/must not/take/reading room. 10. It/be/boring/movie/that/I/fall/asleep. EXERCISE III: Write an essay on the following topic ( about 150-200 words): Some people say that there shouldn't be examinations because they make students feel stressed. Do you agree or disagree with this idea? HELP ME , PLEASE!!!! :> >:

Chỉ cho em bài 6 với ạ em cảm ơn

viết đoạn văn ngắn khoảng 10 câu nêu cảm nhận về câu tục ngữ " tốt gỗ hơn tốt nước sơn " trong đoạn có sử dụng câu đặc biệt ( gạch chân, ghi rõ) mình đang cần gấp các bạn giúp đỡ mình nhé

giải hộ mình ạ 40/x-6+40/x+12=80/x

Viết phương trình hóa học khi cho Fe, S, P, Zn tác dụng với O2. Gọi tên các sản phẩm tạo thành