Cho 3 lọ khí ko màu đựng riêng biệt: o2,h2,so2. Khí nào ở trên có thể lm khô đc = Cao

Chỉ mình:  Với hình ảnh bên dưới: Còn có cách xét 2 trường hợp là với x>1 và với x<1  + Làm sao ra được tích P(P-1) vậy?  + Và làm sao biết được x>1 hoặc x<1 mà không phải x lớn hơn 1 số hay nhỏ hơn 1 số . giải ra nhá!  + Làm cụ thể chi tiết từng bước làm như đang giảng bài nhé

Mọi người giúp mk với ạ , viết pt phân tử nha

cứu mikkk điii mng vẽ cả hình ạ ( mik c mơn nhìu )

14. Carbon footprint is about the__________effect we have on the environment. A. positive B. advantage C. harm D. negative 15 At this time next week, my dad__________ new glass in the windows to stop heat escaping. A. will be installing B. is installed C. was installed D. will be installed 16. ___________driving will cause accidents on the road. A. Caring B. Careful C. Careless D. Harmless

cho tam giác ABC vuông tại A vẽ tia phân giác BD ( D thuộc AC) . Vẽ DE vuông góc với BC tại E a, C/m tam giác ABC = tam giác EBD b, AB =DE c, BA cắt DE tại H , C/m rằng BD vuông góc HC d, so sánh AD và BC

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Giải giúp mình với,mình đang cần gấp

Ex1: CHUYỂN CÁC CÂU SAU SANG BỊ ĐỘNG. 1. They told me that you were the best architect in this city. ->…………………………………………………………………………………………………… 2. She reported that the flowers were killed by frost. ->…………………………………………………………………………………………………… 3. Some people inform me that the director is going to take a business trip to England. ->…………………………………………………………………………………………………… 4. That officer announced that the meeting was delayed until next week. ->…………………………………………………………………………………………………… 5. He discovered that this cotton was grown in Egypt. ->…………………………………………………………………………………………………… 6. They promise that the performance will start on time. ->…………………………………………………………………………………………………… 7. He recommends that we should stay at the city center. ->…………………………………………………………………………………………………… 8. We believed that Alice would pass the driving test. ->…………………………………………………………………………………………………… 10. They have persuaded me that they will go with me to the stadium. ->…………………………………………………………………………………………………… 12. People think that Maradona is the best football player in the 20th century. ->…………………………………………………………………………………………………… 13. They find that the job is not suitable for a girl like her. ->…………………………………………………………………………………………………… 14. The teacher explained that this powerful engine pulled the train. ->…………………………………………………………………………………………………… 15. He told me that his football team had played well last season. ->……………………………………………………………………………………………………

31.People can grow potatoes in this farm. ……………………………………………………………………………………………………….. 32.I have seen that exciting film many times. ……………………………………………………………………………………………………….. 33.My father drinks a cup of tea in the morning. ……………………………………………………………………………………………………….. 34.Bill called his boss yesterday. ……………………………………………………………………………………………………….. 35.Mr. and Mrs. Long were playing chess when we came. ……………………………………………………………………………………………………….. 36.His parents have just given him a new dictionary. ……………………………………………………………………………………………………….. 37.We grow rubber trees in our country. ……………………………………………………………………………………………………….. 38.He met his father at the front gate. ……………………………………………………………………………………………………….. 39.People can’t plant rubber trees in the desert. ……………………………………………………………………………………………………….. 40.We haven’t seen Peter yet. ……………………………………………………………………………………………………….. 41.Ba and Nam are painting the fence. ……………………………………………………………………………………………………….. 42.Linh reads a story book after dinner. ……………………………………………………………………………………………………….. 44.He will send his parents a gift. ……………………………………………………………………………………………………….. 45. They will ask you several questions. ……………………………………………………………………………………………………….. 46. You will answer all the questions on the paper. ……………………………………………………………………………………………………….. 47. They were building a new school here when we came. ……………………………………………………………………………………………………….. 48. Susan is phoning her boyfriend in the living room now . ……………………………………………………………………………………………………….. 49.Mr. Lam must finish this work before June. ……………………………………………………………………………………………………….. 50. My parents are going to buy a new TV tomorrow. ……………………………………………………………………………………………………….. 51. We haven’t seen Peter yet. ……………………………………………………………………………………………………….. 52. Nam and Ba are painting the fence. ……………………………………………………………………………………………………….. 53. Hoa reads a story book after dinner. -> …………………………………………………………….. 54. He will send his parents a gift. ->…………………………………………………………………… 55. She has bought two new dresses recently. -> …………………………………………………………