Hòa tan hoàn toàn 2,4 gam một oxit kim loại hóa trị II cần dùng hết 10 gam dung dịch HCl 21,9% . Xác định công thức hóa học của oxit trên . A.FeO B.CaO C.MgO D.CuO

`| x + 1 | + | x + 3 | = 4` Làm theo cách lập bảng

1. love/ the/ park/ going/ to/ I/ friends./ with/ my 2. family./ She/ cooking/ loves/ for/ her 3. swimming/ I/ you/ go/ tomorrow./ with/ will 4. love/ in/ nature./ I/ being/ outdoors 5. listens/ everyday./ My/ to/ sister/ pop music 6. weekend?/ the/ like/ to/ Do/ the/ you/ going/ cinema/ the/ on 7. hate/ I/ tomatoes./ eating 8. father/ playing/ enjoy/ does/ chess./ not/ His 9. don’t/playing/ Why/ you/ like/ football? 10. grandma/ watching/ Does/ Vietnamese/ your/ like/ movies?

giúp mình với ạ mình cần gấp !cả 2 bài ạ

Một hình bình hành có trung bình cộng của chiều cao và đáy là 12cm, chiều cao bằng 1/2 đáy. Tính diện tích hình bình hành đó

Giải phương trình : `sqrt{2x-3}-sqrt{x}=2x-6`

Lúc 6h, 1 xe đạp đi từ A -> vs vận tốc 15km/h. Đến 8h, 1 xe khác đi xe đạp từ B đi về A vs vận tốc 18 km/.h. Hai người gặp nhau lúc mấy giờ ? Biết quãng đường AB dài 129 km. Giúp mik với ak !!!!

Mọi người giúp mình 3 bài này với.

Exercise 3. Turn into reported speech, using the verbs in brackets. 1. He said to her, “Come to the party. You’ll enjoy it” (persuade)  …………………………………………………………………………………………………………………. 2. He said to me, “I’ll lend you some money if you like” (offer)  …………………………………………………………………………………………………………………. 3. He said to us, “Why don’t you have a holiday in my country cottage?” (invite)  …………………………………………………………………………………………………………………. 4. “All right. I’ll help you,” Tom said to Joe. (agree)  …………………………………………………………………………………………………………………. 5. “Whatever you do, don’t walk on the grass” the safeguard said to the tourists. (warn)  …………………………………………………………………………………………………………………. 6. “You must pay for the damage you’ve done,” she said. (make)  …………………………………………………………………………………………………………………. 7. “I haven’t done anything wrong,” Tom said. (deny)  …………………………………………………………………………………………………………………. 8. “No, I won’t talk to the lawyer,” Tom said. (refuse)  …………………………………………………………………………………………………………………. 9. “Yes, I did drive too fast through the town,” she said. (admit)  …………………………………………………………………………………………………………………. 10. “You damage my sweater, Tom,” said Ben. (accuse)  …………………………………………………………………………………………………………………. 11. “Stop speeding or you will get a ticket,” said the traffic warden to the driver. (warn)  …………………………………………………………………………………………………………………. 12. “Please do go to the movies with me tonight,” said Aunt Fancy. (persuade)  …………………………………………………………………………………………………………………. 13. “Why don’t we work and keep ourselves from starving?” said Mike. (suggest)  …………………………………………………………………………………………………………………. 14. “Go on holiday when the weather gets warmer,” she told him. (advise)  …………………………………………………………………………………………………………………. 15. “Keep out of this room at all time,” she said to them. (warn)  ………………………………………………………………………………………………………………….

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