tả người mà em kính trọng nhất không chép mạng nha mk tự nghĩ ra đó ai chép mạng mk biết ngay

các cậu giải thich giúp tớ dòng m1= V1.Pn dc kh ạ, tớ không hiểu công thức này từ đâu có

Tìm đa thức M biết rằng: 1)M+(5x^2-2xy)=6x^2+9xy-y^2 2)M+(2x^2y-2xy^3)=2x^2y-4xy^3 3)(2xy^2+x^2-x^2y)-M=-xy^2-x^2y+1

Bài 8. Viết câu dưới đay theo cách khác, sử dụng “might’ hoặc “may” Ví dụ : Perhaps Helen is in her office ---> She might be in her office. Perhaps Helen isn’t in her office --> She might not be in her office. 1. Perhaps Helen is busy. __________________________________________________ 2. Perhaps she is working. __________________________________________________ 3. I’m not sure that Liz will come to the party. __________________________________________________ 4. Perhaps she wants to be alone. __________________________________________________ 5. perhaps she was ill yesterday. __________________________________________________ 6. I’m not sure that Sue wil be able to come out with us this evening. __________________________________________________ 7. Perhaps she went home early. __________________________________________________ 8. I’m not sure thats I’ll go out htis evening. __________________________________________________ 9. perhaps she had to go home early. __________________________________________________ 10. Perhaps she was working yesterday. __________________________________________________ 11. perhaps she doesn’t want to see me. __________________________________________________ 12. Perhaps she isn’t working today. __________________________________________________ 13. I’m not sure that we’ll get tickets for the concert. __________________________________________________ 14. Perhaps she wasn’t feeling well yesterday. __________________________________________________ Bài 9. Sắp xếp các từ sau để tạo thành một câu hoàn chỉnh. 1.be/ may/ python/ sleeping/ the/ __________________________________________________ 2. An/ become/explore/ might/ she/ __________________________________________________ 3. anyone/ can/ he/ laugh make. __________________________________________________ 4. plan/ may/ with/ agree/ this/ she. __________________________________________________ 5. happy/ may/ be/ about/ what/./ They/ happened/not. __________________________________________________ 6. go/ might/ a/ see/ doctor/./ __________________________________________________ 7. work/ might/ go/ tomorrow/ ./ I/ not/ to __________________________________________________ 8. not/ to/ party/./ Sue/ might/ come/ the __________________________________________________

CH3COONa->(1)CH4->(2)C2H2->(3) C2H6(4) [từ C2H6 dọc xuốngC2H5CL]->(5) C4H10 GIÚP EM Ạ:(((( E MẤT KIẾN THỨC Ạ CẢM ƠN NHIỀU Ạ!

Bài 6. Sắp xếp các từ sau để tạo thành câu hoàn chỉnh. 1.on/ May/ lan/ be/ will/ Sundy/ 25th / 13 _________________________________________________________ 2. call/ six/ willl/ I/ after/ o’clock/ again/her. _________________________________________________________ 3. you/ free/ morning/ be/ will/ tomorrow? _________________________________________________________ 4. Ho Chi Minh city/ her/ visit/ next year/ will/ parents. _________________________________________________________ 5. go/her/ we/ birthday/ will/ party/ to. ____________________________________ Bài 7. Chọn một động từ thích hợp và sử dụng cấu trúc “ might + V” để hoàn thành các câu sau: Bite break need rain slip wake 1. Take an umbrella with you when you go out. It _________ later. 2. Don’t make too much noise. You ______ the baby. 3. Be careful of that dog. It ____ you. 4. I don’t think we should throw that letter away. We ______ it later. 5. Be careful. The footbath is very icy. You ______ 6. Don’t let the children play in this room. They ______ something.

Tính tổng của 2 đa thức sau và tìm bậc của đa thức thu được 1)4x^2-5xy+3y^2 và 3x^2+2xy-y^2 2)x^3-2x^2y+1 phần 3 x^2y-y^4+1 và -x^3-1 phần 2 x^2y+x^2y-y^4-2

Giúp em hoàn thành chuỗi này với C2H6->C2H4-> C2H6->CO2->NAHCO3 (1) CH3COONA-> CH4->C->CH4->CH3CL (2) [(2) (C3H6)n [(3) C3H7CL (3) C3H8(1)->C3H6->[(4) C3H6Br2 [(5) C3H6(OH)2

Mọi người giúp em làm bài 3 với ạ

thắng lợi quân sự của ta , ý nghĩa của từng thắng lợi của việt nam hóa chiến tranh