Giúp mình vs mình sẽ đánh giá 5 sao

Mng giải thích cách làm tại sao làm v e sẽ vote 5 sao ạ

Cho tam giác ABC vuông tại A, tia phân giác của góc B cắt AC ở E.(Vẽ hình) a) Chứng minh BEC  là góc tù b) Biết C - B=10o. Tính góc AEB và góc BEC

Toán Tiếng Anh: 1. How many boxes are crossed by a diagonal in a rectangular table formed by 199 x 991 small squares? 2. The son of a professor's father is talking to the father of the professor's son, and the professor does not take part in the conversation. Is this possible?

hỏi lần 3 :))))))))))))))))))chuyển sang bị động

He was _____ with bribery after he offered to pay the policeman a big sum of money to overlook his offence. A. charged B. accused C. sued D. suspected 7. Television came into _____ and quickly became a competitor with the motion pictures. A. practice B. fact C. use D. life 8. Without _____, natural resources will be used up within a hundred years. A. preservation B. maintenance C. conservation D. protection 9 . He is _____ the most successful pop singer of his generation. A. far and away B. by far C. so far D. far from 10. _____ the students in my class enjoy taking part in social activities. A. Most of B. Most C. Many D. Almost of 11.I would rather you ________ that. A.do B.don’t do C.didn’t do D.to do 12. It is worth________ the historical places of the area. A. to visit B. visit C. visiting D. visited

Cho tam giác ABC. Gọi D, M, E theo thứ tự là trung điểm của AB, BC, CA. a) Chứng minh tứ giác ADME là hình bình hành b) Tam giác ABC có điều kiện gì thì tứ giác ADME là hình chữ nhật

tìm giá trị nhỏ nhất của A=17x^2-10x B=-4x^2+12x-17 giúp mik vs ạ

I/ Find a mistake in four underlined parts of each sentence and correct it. 28. I think more (A) people will be using (B) skycycling tubes (C) in the future (D). 29. This is (A) Mr and Mrs Evers’ (B) house and those (C) are theirs (D) children. 30. My (A) jet pack is on (B) the ground and her (C) is on (D) the table. II/ Complete the second sentence so that it has a similar meaning to the first. 31. I usually stayed up late to watch football matches last year, but now I don’t. I used _____________________________________________ 32. I last visited my native village when I was ten. I haven't ___________________________________________ 33. Developing countries have more population problems than developed countries. Developed countries _________________________________ 34. What is the population of Ho Chi Minh City? (in) How many ________________________________________ 35. Although the weather was bad, I had a very good time in Brazil. (spite) In _______________________________________________

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