Vẽ hộ mình cái hình vs mn ơi I nằm trong mặt phẳng (BCD) O nằm trong mặt phẳng (ABC) U nằm ngoài mặt phẳng (ABC) (Các bạn làm được câu nào thì làm giúp mình trc vs thanks)

tổng các số lẻ liên tiếp bắt đầu từ 1 là số chính phương

Bài 1: sử dụng những từ đã cho để đặt câu 1) Harvest / busy/ time / year / in / countryside. => 2) Jenny / exctied / trip / village. => 3) Peter / not / think / country life / interesting. => 4) It / better / children / grow / up / city / than / countryside. => 5) Giang / prefer / herd / cows / pick / blackberries. => 6) Biking / along / rice / fields / make / her / feel / comfortable. => 7) A / city / densely / populated / than / a / village. => 8) Jack / not / want / live / countryside / because / it / boring / inconvenient. =>

Cho tam giác ABC cân tại A có M, N lần lượt là trung điểm của BC và AC. Trên tia NM lấy điểm D sao cho N là trung điểm ND a) So sánh ND vs AB và BC b) Chứng minh tứ giác BDCN là hình chữ nhật

cho tứ diện abcd .điểm M nằm trên AB sao cho AM=1/4MB,N nằm trên AC sao cho AN= 3NC,điểm I nằm trong mặt phẳng (BCD). tìm giao tuyến của các cặp mặt phẳng (AMN) và (BCD)

EXERCISE: Put the verbs in brackets in the correct tense 11. They (build) ___________ that bridge when I was here last year. They (not finish) ___________ it yet. 12. He certainly (not, do) _____________ all his homework by 10 tonight. 13. Don’t make noise. My mother (talk) ___________ with her friends. 14. Miss Helen (help) ___________ you as soon as she (finish) _____________ that letter tomorrow. 15. He (do) ___________ his homework before he went to the cinema. 16. The moon (go) ___________ round the earth. 17. I feel terrible. I think I (be) ______________ sick. 18. He (leave) _____________ London 2 years ago and I (not/ see) ____________ him since then. 19. Where ___________ you (live) __________? – In a flat, near the university. 20. When he (return) ____________, I (give) ______________ him the key. 21. I (come) _____________ and (see) ___________ you before I leave here. 22. Whenever I have a problem, I (give) _____________ you a ring. 23. After she had been at the party, her heart (be) __________ full of strange emotion. 24. ___________ you (think) ____________ that he (recognize) __________________ me?

làm giúp mình câu 3 từ bài i trở đi

Giải hộ mình câu tô màu với ạ mình cảm ơn

Giúp mình với nha, mình đang cần gấp

EXERCISE: Put the verbs in brackets in the correct tense 25. When I (be) ___________ a child, I (spend) _____________hours playing with a tin box. 26. ____________ you (have) _________ time to help me tomorrow? 27. He smiled at me in a friendly way when he (see) _____________ me. 28. I (remember) _____________ this day all my life. 29. Where you (be) __________ all this morning? It’s nearly midday now. 30. What you (do) ___________ when you grow up, my boy? 31. We’ll go out when the rain (stop) _____________. 32. Where are you? I am upstairs. I (have) __________ a bath. 33. I (listen) _____________ to the radio when you rang the bell. 34. I (know) _____________ the result in a week. 35. She was late because she (have) ______ an accident.