(căn 3- căn 2+1)(căn 3-1) (căn 8-5 căn 2+căn 20)*căn 5 -(3 căn 1/10 +10) mọi người ơi giải giúp mình với

hay ke ten cac loai chat trong co the ma em biet

Cho biết hướng của các loại gió mùa mùa đông và gió mùa mùa hạ ở các khu vực có gió mùa hoạt động, do những áp cao nào di chuyển đến áp thấp nào? Nêu đặc điểm chung của gió mùa mùa đông và gió mùa mùa hạ?

a*a*a+b*b*b+c*c*c=3abc với a+b+c=0

So sánh đặc điểm phong trào giải phóng dân tộc ở châu Phi với châu Á?

Giúp mình câu 125 với nhé mik cảm ơn!

I/ Change the following sentences from active into passive form. 1.Somebody has taken my briefcase. ⇒ 2.The teacher returned our written word to us. ⇒ 3.She had finished her report by soon. ⇒ 4.The mad dog bit the little boy. ⇒ 5.The police have arrested five suspects. ⇒ 6.The doctor ordered him to take a long rest. ⇒ 7.Lightening strucsk the house. ⇒ 8.A group of students have met their friends at the rail way station. ⇒ 9.They didn't allow Tom to take these books home. ⇒ 10.The teacher won't correct exersices tomorrow. ⇒ 11.Marry há operated Tom since 10 o'clock. ⇒ 12.This is the second time they have written to us about this. ⇒ 13.Mr. Smith has taught us French for two year. ⇒ 14. they didn't look after the children properly ⇒ 15.Nobody swept this street last week ⇒ 16.People drink a great deal of tea in England ⇒ 17.People speak English all over the world ⇒ 18.Tom was writing two poems ⇒ 19.she often takes her dog for a walk ⇒ 20.They can't make tea with cold water ⇒ 21The chief engineer was instructing all the workers of the plan ⇒ 22.Somebody has taken some of my book away ⇒ 23.They will hold the meeting before the May day ⇒ 24.The have to repair the engine of the car ⇒ 25.The boys broke the window and took away some pictures ⇒ 26.They may use this room for the classroom ⇒ 27. People spends a lot of money on advertising everyday ⇒ 28.The teacher is going to tell is story ⇒ 29.Marry is cutting the cake with a sharp knife ⇒ 30.The children looked at the women with a red hat ⇒ II/Rewrite the sentences in the passive with modal verds: 1. The new president might fulfill this promise as quickly as people would like ⇒ 2. You can buy videos like this one anywhere ⇒ 3.Someone has to write the history of the European Community one day ⇒ 4.They ought to have reported the accident to the police ⇒ 5.They must do something soon to solve the proplem of violence in schools ⇒ 6.If the river floods , water may destroy the village ⇒ 7.People may cook carrots or eat them raw ⇒ 8.Someone has to fit the air conditioner before the hot weather comes ⇒ 9. He can't repair my bike ⇒ 10. We must do something to protect the environment ⇒

123,456+987,654=? các bn giúp mình(^-^)

Xét hàm số y = -x^4 +2x^2 -1 là h.số chắn hay lẻ .Vì sao ?

Câu 1: hãy xác định hóa trị của các nguyên tố a) Lưu huỳnh trong các hợp chất: H2S; SO2 b) Nito trong các hợp chất: NH3; NO; NO2; N2O5 Câu 2: Lập CTHH của các nguyên tố sau với hidro sau đó tính PTK của hợp chất đó a) S(II) b) N(III) c) C(IV) d) P(III) giúp mình nhanh nhé