em hãy nêu các đặc điểm chung các bài ca dao : có chữ đầu là " Thân em " hãy tìm đặc điểm chung : nghệ thuật của các bào ca dao

Cho 2,4g Mg tan hoàn toàn trong 100ml dd HCl 3M. Tính pH của dd thu được (bỏ qua sự thủy phân của Mg2+)

giúp mình đi ạ mình cần gấp huhu

Vẽ 2 góc kề bù góc xOy , góc yOz , bt xOy=60độ a) Tính góc yOz b) Vẽ tia phân giác của góc yOz . Tính góc xOt

CHUYÊN ĐỀ: WISH SENTENCES Đề bài: Viết lại câu mà nghĩa không đổi: 1. It rain today -> We wish.................. 2. She doesn't join the trip with her classmate -> She wishes...................... 3. Phong gets bad mark this semester -> He wishes....................... 4. Thu doesn't have enough time to do the test -> She wishes...................... 5. It's cold and windy -> I wish............... 6. Lan miss the bus to school -> She wishes..................... 7. I can't hear that strange noise -> I wish............................ 8. They do nothing for their mini - project -> They wish................................ 9. Hoa and Ba won't go fishing this weekend -> THey wish................................. 10. Nam's father doesn't get the promotion -> He wishes.................................... 11. My team doesn't win the game -> I wish.............................. 12. I don't know how to speak Spanish -> I wish............................... 13. The boy is too short to play volleyball -> He wishes........................................... 14. Her little brother can't swim -> He wishes................................. 15. Lan never visit the citadel in Hue -> She wishes.............................. 16. Their mother doesn't buy them new comics -> They wish..................................... 17. Tuan doesn't write the coposition -> He wishes..................... 18. Quy doesn't take part in the soccer match trainning -> She wishes....................... 19. Her mother can't drive a car -> She wishes.................................. 20. The "Y and Y" club cancels the meeting -> The members wish......................... 21. Lan can not run as fast as her friend -> She wishes..................................... 22. Thang has to stay home bacause of her sickness -> He wishes.............................. 23. The girls don't perform very well -> They wish................................ 24. Some student are late for class -> They wish................................. 25. My class make a lot of noise -> I wish....................................... 26. I didn't go shopping -> I wish................................ 27. You didn't tell them about it -> I wish....................................... 28. John didn't come to the meeting -> I wish................................. 29. He made a lot of mistake last year -> I wish................................... 30. I'm sorry I missed the film last night -> I wish..........................................

a) (x + 1) ³ b) (x - 2y) ³ c) ( 2x + y) ³ d) (x - $\frac{1}{3}$ ) ³

bao nhiêu nhân với bao nhiêu để bằng 19.[ trừ 1x19 ]. ví dụ như là 4x4 thì bằng 16

giúp e vs hứa cho 5 sao vs ctlhn

Calli: Cảm giác có người theo đuổi bỡ ngỡ thật đấy :))

giúp mình câu 14 ; 17 nhanh nhé