tìm số nguyên n thỏa mãn điều kiện n+5 chia hết cho 2n-1

15. His uncle (take).............................him to see a doctor last week. 16.She rarely (chat )………………..with her friends . 17.( Liz buy)..................................... a lot of souvenirs yesterday? 18. (They see)…………………….…a lot of animals at the zoo yesterday ? 19. Every night I (go )………………………bed early.

cho tam giác ABC vuông tại A ( AC >AB ). kẻ AH vuông BC . Trên BC lấy điểm D sao cho HD=HB. Kẻ CE vuông góc với AD kéo dài . CM rằng : . a) ∆BAD cân . b)∠BAH=∠DCE. c)gọi giao điểm của AH và CE là K. CM : KD//AB. d) tìm điều kiện của ∆ ABC để ∆AKC đều

Làm từ bài 6 đến bài 9. Làm từ 3 bài trở lên. Mk báo cáo nha

Tam giác ABC cân tại A,phân giác AD dài 12cm ,AB=13 cm thì độ dài đoạn EF(E,F lần lượt là trung điểm của AB,AC) là

Làm hộ mình bài 6 và bài 7 nha Mình đăng hai lần rồi Các bạn giúp mình đi mà Nha năn nỉ đó 🙏🙏🙏🙏🙏😭😭😭😭😁

c/minh rằng hai số a và b là số ngtố thì hai số b và a-b(a>b) cũng là số ngtố

Part 2. Put the verbs in brackets into the correct tense or form. 1. I (be) …..…….. a student. 2. My sister (get) ………….. up at 6 every day. 3. We (not/ have) ………………….. math on Fridays. 4. It’s half past five, (Mr. Quang / drive) ……………………………... to the farm? 5. Nam's house (have ) ……………..a big yard. 6. (Mai and Hoa/ go) …………………….………..to school on Saturday? 7. Tuan ( not, listen) ……………………..to music after school. 8. Mai (be) ……………..….a new student in class 6F. 9. My mother and father (not, be)……………..……….doctors. 10. This is a door . Those (be) …………………..……windows. 11. My father (listen)……………………………...…… to the radio now. 12. Where is your mother? - She (have)................................ dinner in the kitchen. 13. Mr. Nam (not, work) ……………….……… on Sunday. 14. The students (not, be) ……….………..in class at present. 15. She always (brush) ……………….….. her teeth after meals. 16. The children(play) ………………….. in the park at the moment. 17. My mother (cook) ………………a meal now. She ( cook) ……………every day. 18. She (wash) …………………………… her face in the morning. 19. Look! The bus (come) .............................................. 20. Ba and I (be).................................students. Part 3. Reading I. Fill in the blank with a word/ phrase in the box. volleyball goes doing walks takes and neighborhood is with twelve He is Hoang. He is (1) ………… years old and he is in grade 6. He lives in a house in the city (2) ………… his mother and father. In front of the house, there (3) ………… a beautiful park. To the left of the house, there is a clinic. To the right of the house, there is a restaurant. In the (4) …………, there is a museum, a bank (5) ………… a post office. The school is near his house so he (6) ………… to school every day. In the afternoon, after (7) ………… his homework, he (8) ………… to the park and plays (9) ………… with his friends. In the evening, he does the housework, he (10) ………… a shower and goes to bed at nine o’clock. mik đang cần gấp

làm hết cho mik nha

Tam giác ABC vuông tại B , góc C bằng 60 độ , BC= 6cm thì trung tuyến BK là: 3cm