Tập hợp Q các số hữu tỉ -3/9 < …/7 < -2/9 Điềm vào chỗ chấm

Giúp em với mng ơi!!! Làm đúng nhé!!!! Làm câu 27, 30 thui

Đun nóng m gam Zn(NO3)2 (không có không khí) đến khi khối lượng chất rắn thu được không đổi, thấy khối lượng chất rắn còn trong bình nhỏ hơn khối lượng chất rắn ban đầu là 2,16 gam. Giá trị của m là

Làm hộ mình Mình cần trước 9h30

25. ....tennis is my favourite sport. I play once or twice ......... week if I can, but I'm not ...... very good player. A. x/the/ the B. x /the/ the C. a/ x / the D.x/ a/ a 26. I won't be home for ........ dinner this evening. I'm meeting some friends after ...... work and we're going to ........ cinema. A. the/a/ the B. a/the/ the C. x/the/ the D. x/ x/the 27. There was..... accident as I was going ..... home last night. Two people were taken to....... hospital. I think ...... most accidents are caused by ........people driving too fast. A. the/a/ the/ x/x B. x/x/ an/the/ the C. an/x/the/x/x D. an/x/x/ x/x 28. ....... atmosphere at ........ party was likely and free. A. the/a B. a/the C. the/ the D. x/x 29. After......... World War II, .........United Nations was formed. A. the/a B. a/the C. the/ the D. x/the 30. People eat chocolate all over ...... world. It is probably ......... most popular candy in ........ world. A. the/a/ the B. the/the/ the C. x/the/ the D. x/x/ the 31. Do you live in ..........big city or in ........... small town? A. the/a B. a/a C. the /the D. x/x 32. A: Do you know Lan's sister? _ B: Yes. In fact, she is .............friend of mine. A. the B. a C. an D. x 33. Are you taking ..........French this semester? A. the B. a C. an D. x

34. Birds (build) ___________________their nests in summer and (fly)___________ to the South in winter. 38. How long (Bob and Mary /be)____________________ married? 39. (You /receive) ____________________any letter from your parents yet? 48. my brother(finish)_________________ his second novel so far. 63. She is buying a lot of flour, I think she (make)_______________some cakes. 66. Some animals (not eat)___________________ during winter. 67. He drives too dangerously, he (have)_______________________an accident. 68. John (watch) ______________TV at 8 last evening.

Cali : Tạm Biệt Hỏi Đáp NL : giờ đi hok òi nên hoidap mik sẽ phải nghỉ 1 năm,và chỉ thỉnh thoảng tối on đc thui

giúp mik giải bài này với mn ( ko cần làm ý a)

21. I am handsome today, .........................? 22. Nobody loves her, ...................................? 23. He learned the new lessons very hard, .............................? 24. The doctors have rarely had a drink with each other, ..........................? 25. Hans always wears tie when he goes out, ...........................? 26. The cow has not eaten anything for two days, ..........................? 27. Everybody looks happy, ……………….….? 28. Nothing will influence his plan, …………………..? 29. He and I did not come to the party, …………….….? 30. You and he were there last night, …………………...? 31. Send it to me, …………………? 32. Do sit down, ………………..…? 33. Let us play in the yard, ……………….….? 34. Anybody is fond of beauty, ………………….…? 35. Shut up, …………..……? 36. Somebody took her book, ……..……………..? 37. She is never angry, …………………..? 38. Don’t forget, …………….…..? 39. Let us watch the film, ……………….…? 40. Let’s do it by ourselves,………….…..? 41. They and I are students, …………….…..? 42. You and she will be there, ………….……..? 43. Come in, …………….…..? 44. Hoa can’t draw a picture, ……………..…..? 45. Everybody likes milk, ………………...? 46.There’ll be plenty for everyone,…………………. ? 47.Let’s go out for dinner tonight,……………… ? 48.That isn’t Bill driving, ……………….? 49. Nothing went wrong,…………………… ? 50.There used to be trees here,………………

Phân tích đa thức sau thành nhân tử (x² + 9)² - 36x²