Bài 1: Tính các góc B,D của hình thang ABCD, biết rằng A= 60, C= 130 Bài 2: Cho ΔABC cân tại A. Trên các cạnh bên AB, AC lấy các điểm M,N sao cho BM=CN a) Tứ giác BMNC là hình gì? Vì sao? b) Tính các góc của tứ giác BMNC biết rằng A= 40 MN rảnh thì vẽ hình hoặc ko vẽ hình cx đc ak. Giup mk vs ak

Làm dễ hiểu thôi :>, chi tiết được càng tốt Không vội

Giải mình chi tiết câu này với ạ

1 công nhân dự định làm 70 sản phẩm trong 1 thời gian quy định nhưng thực tế sí nghiệp lại giao cho người công nhân làm 84 sản phẩm vì vậy người đó đã làm mỗi giờ thêm 1 sản phẩm song thời gian hoàn thành công việc vẵn chậm hơn 35 phút hỏi thep dự kiến ban đầu trung bình mỗi giờ người công nhân đó định làm bao nhiêu sản phẩm biết khả năng người đó làm đc ko quá 10 sản phẩm trong mỗi giờ 1 chiếc nón lá có dạng hình nón với đường kính đấy bằng 44cm độ dài đường sinh bằng 30 cm người ta lát mặt người hình nón bằng 3 lớp lá khô tính diện tích lá cần dùng để tạo nên 1 chiếc nón lá như vậy

Một đại đội gồm 3 trung đội. Mỗi trung đội có 1 tiểu đội. Biết rằng 1 đại đội có 108 chiến sĩ. Hỏi mỗi tiểu đội có bao nhiêu chiến sĩ ?

Giải mình chi tiết câu này với ạ

Bạn Lan đi xe đạp từ nhà đến trường,đoạn đường dài 2,826km.Bánh xe có đường kính 60cm.Hỏi bánh xe phải quay hết bao nhiêu vòng?

Giúp mình với mọi người ơi từ câu 9 đến 28

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions. When you hear how I learned a foreign language, you have to remember a few things. In 1993, when I started learning English, no one had heard of the Internet. I wasn’t able to read websites on topics that I found interesting or follow blogs. And I have no idea how I decided which movies to see without my favourite movie review website. My reading practice was limited. All I had were a few books on sale locally. For listening practice, I only had the news and cartoons on cable TV. People bought and rented videos but in Poland there was no spoken English on them. The only way to hear that was to visit the movies. My dictionaries were all in book form until I received my first PC dictionary. It came on at least six disks and had unhelpful explanations and few example sentences. It doesn’t sound very useful but I loved it because of its ability to work with other programs and find English words more quickly. Today, computerized dictionaries have simple explanations and lots of examples. Now I can spend hours on the web, reading about my favourite topics, downloading up-to-date movies, emailing English-speaking friends and posting comments on forums. 28. The word “up-to-date” means ____________________. A. oldest B. daily C. latest D. longest 29. What is the writer trying to do in the text? ____________________. A. Encourage people to start learning in a foreign language. B. Compare two different ways of teaching a language. C. Complain about the use of technology in language learning. D. Explain how language learning materials have changed. 30. To watch films in English, Polish people in the 1990s had to ____________________. A. have cable television B. go to the cinema C. rent films on videotape D. watch TV for children 31. The writer says he doesn’t know ____________________. A. which topics he found interesting B. when he first heard about the internet C. how he used to choose films to watch D. where he bought English book online from 32. The writer liked his first computer dictionary because it ____________________. A. found information at a faster speed B. came with other computer programs C. was better than today’s dictionaries D. gave you useful example sentences Choose the second sentence which has the same meaning as that of the root one. 33. My father had gone home before we arrived. A. After my father arrived, we went home. B. After my father had gone home, we arrived. C. After my father had gone home, we arrive. D. After my father had gone home, we had arrived. 34. The children couldn’t go swimming because the sea was too rough. A. The children couldn’t go swimming because of the sea rough B. The children couldn’t go swimming due of the rough sea. C. The children couldn’t go swimming because of the rough sea. D. The children couldn’t go swim because of the rough sea. 35. I think you should spend more time improving your pronunciation. A. If I were you, I would spend more time improving my pronunciation. B. If I am you, I would spend more time improving my pronunciation. C. If I am you, I will spend more time improving my pronunciation. D. If I were you, I will spend more time improving my pronunciation.

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