Có tất cả bao nhiêu cách xếp 1 người vào 9 chiếc ghế hàng ngang? A:10 B:8 C:9 D:1

Hehe mãi mới đựt hạng mới zui qué <3 Vẽ mầm chúc mừng nha :> (full màu)

20 chục điểm lun đó.nhớ phải vẽ hình! đủ combo lun

Giúp mik bài hình đến phần b thôi

cho hàm số y=-1/2 x^2 có đồ thị (P) 1) tìm điểm M thuộc đồ thị (P) biết M có tung độ bằng -8

Cho dãy số :2; 6; 10; 14;........;102 a)Hỏi các số 76; 84; 184 có thuộc dãy số trên ko ? Vì sao b)Tính tổng các số hạng của dãy số trên

hai đường MN và PQ cắt nhau tại A. Biết MAQ+NAP=250o. tính số góc NAP

20. I haven’t been to a concert for over a year. → The last time 21. Everything was tidy, so I felt pleasant. → Because 22. The dogs won’t bite you unless you touch them. → If 23. Minh doesn’t get rid of his job because he loves working with computers so much. → Because of 24. They went swimming despite the coldness of the water. → Although 25. The best thing in life is free though love is often very expensive. → In spite of

11. He often helps other people. I (think)……………………..he is a good man. 12. I (think) ………………………….. about this project since last spring. 13. Can you help me, please? I (look) ………………………… for Mr. Smith's office. 14. Is that Alan over there? He (look) …………………… old and tired. Is he sick? 15. She (taste) …………………………. the soup in the kitchen when the telephone rang. 16. This soup (taste) ………………………. good. I really like it. 17. Could you call a little later? We (have) ……………………… dinner now. 18. She (know) ………………………..…him for quite a long time. They are good friends. 19. Your bag (weigh) …………………………..a ton. There are too many books in it. 20. I (see) ………………………a little boy in the room. He is sleeping on the sofa

1. How often does Peter go to the swimming pool? – He (go) ……………………….to the swimming pool every day. He likes swimming. 2. When is the best time to call you? – I usually (work) …………………… till nine in the evening. Call me around ten, if you can. 3. Let's ask Anna to make apple pie for dessert. She (make) ……………………. great apple pies. 4. Please be quiet. My children (sleep) …………………………. now. 5. The sun(rise) …………………… in the east. 6. Listen! Someone (play) ………………………the piano. Do you hear it? 7. What is Linda doing? – She (cook) ……………………………. dinner. 8. She can't go to the movies. She (do)……………………… her homework yet. 9. Tanya (visit) ………………………….. France several times. 10. We (write)………………….. this report for four hours. I'm tired. Let's have a break.