x y -- = -- giúp mik với 3 7

Giups mk với P+O2-->?? S+O2-->??

giúp mik với mik đang cần gấp nhé

Hãy viết đoạn văn khoảng 10 câu (trong đoạn văn có sử dụng câu bị động ) để trình bày suy nghĩ về những người hùng thầm lặng trong bối cảnh đất nước chung tay đẩy lùi dịch bệnh COVID-19 Giúp mình với!!!Mình đang cần gấp!!

viết một đoạn văn khoảng 7-9 câu trình bày cảm nhận của em về khung cảnh thiên nhiên sông Thu Bồn trong đoạn trích Vượt thác của Võ Quảng ko chép mạng nha'

ko thực hiện phép tính, xem tổng 1.2.3.4.5-40 có chia hết cho 5 ko Lưu ý dấu chấm là dấu nhân

1. Paul said: “I must go home now.” Paul said he ............................................................................................................ 2. “New York is bigger than London.” said Tom. Tom said New York .......................................................................................... 3. “I have finished my lesson.” said John. John said he .............................................................................................. 4. “Don’t forget to send my letter.” Said Tim to Mary. Tim asked Mary ................................................................................................ 5. I asked the police “How far is it from here to the post office?” I asked the police how …………………………………………………………………………… 6. The mother said to the son “Tidy your room regularly.” The mother ordered the son to .………………………………………………………………… 7. “I didn’t meet her at the party last night.” Tom said Tom said he …………………………………………………………………………………….. 8. Mary said “I can not go to the cinema with you tonight, Peter” Mary told Peter that …………………………………………………………………………….. 9. Nga said “I will graduate next year.” Nga said that ………………………………………… 10. “Have you done your homework?” said my mother. My mother wanted to know if …………………………………………………………………… 11. “The teacher often gives us a lot of exercises” said the students. The students complained that …………………………………………………………………… 12. “I haven’t heard from my brother since last year.” Said Thomas Thomas said he ………………………………………………………………………………….. 13. “Don’t take the books away, Hanah.” Said the librarian. The librarian told Hanah not ……………………………………………………………………… 14. “I had known this singer before.” Said the manager. The manager said ………………………………………………………………………………… 15. “Did you phone me yesterday?” said Nam to Trang. Nam asked Trang whether ………………………………………………………………………... 16. “You must tell the truth.” Said the police The police said that I ……………………………………………………………………………… 17. “We don’t know how to do this exercise.” The students said to the teacher. The students said to the teacher they ……………………………………………………………... 18. “We are waiting for the school bus.” Said the children The children said they ……………………………………………………………………………. 19. “Why don’t we go for a picnic?” said John to his friends John asked his friends why they ………………………………………………………………….. 20. He says “I want to give up my job.” He says that he ……………………………………………………………………………………. 21. She said “If I had a lot of money, I would give you some.” She said that if ……………………………………………………………………………………. 22. They said “We wish we could form a band.” They said that they ……………………………………………………………………………… 23. My mother said “You should give up smoking.” My mother said that I ……………………………………………………………………………

tìm m để các hàm số a, y=(m-1)x2 đồng biến khi x>o b, y=(3-m)x2 nghịch biến khi x>0

Ex 4:Use “Would/ Do you mind + If.., and Would you mind + Ving ” to rewrite the sentences . 1.Can I move the refrigerator? Would you mind if I…………………………………………………………? 2. Could I sit here? Do you mind if I………………………………………………………………. ? 3.May I ask you a question? Would you mind If I……………………………………………………? 4.Could I turn the radio on? Do you mind ……………………………………………………….……? 5. Could I borrow your dictionary? Would you mind if I …………………………………………………………? 6. Can you take me a photograph? Would you mind ………………………………………………………? 7.Could you wait for a moment? Would you mind ……………………………………………………….? 8.Will you post this letter for me? Would you mind …………………………………………………………? 9. Can I turn on the TV? Would you mind ……………………………………………………?

Hòa tan hoàn toàn 0,4 mol Fe3O4 bằng dung dịch HNO3 loãng, thu được a mol khí N2O duy nhất. Tính giá trị của a ?