Làm cho mình bài 3 nhé mình cảm ơn

Một hình chữ nhật có chu vi bằng 140m, chiều rộng hình chữ nhật bằng 30m. Tính chiều dài hình chữ nhật đó?

my televison is..........................................his televison.(moderm)

Bài 1: Đốt cháy hoàn toàn 0,5 mol ankadien thu được 26,4g Co2. Tìm CTPT của ankadien?

Câu 1 (3,0 điểm): a. Vi sinh vật cộng sinh có vai trò gì đối với động vật nhai lại ? b. Ở người, vận tốc máu trong loại mạch nào là nhanh nhất, loại mạch nào là chậm nhất ? Nêu tác dụng của việc máu chảy nhanh hay chậm trong từng loại mạch đó ? c. Tại sao nói trong quá trình hô hấp ở cá có hiện tượng dòng nước chảy một chiều và gần như liên tục từ miệng qua mang ?

Hỗn hợp X gồm a mol Al và 0.3 mol Mg phản ứng hết với hỗn hợp Y(vừa đủ) gồm b mol cl2 và 0.4 mol O2 thu được 64.6g hỗn hợp chất rắn. Gía trị của a là

21.You can ___________ easily on the Dead Sea. Why? Because it’s so salty! A.fly B.walk C.float 22.She is a frequent customer of that airline. She has to ___________ every month for work. A.drive B.fly C.ride 23.Will you ___________ a taxi or a train? A.fly B.walk C.take 24.He ___________ in a white sport car. A.walks B.drives C.takes 25.We __________ to school two years ago. Now I go to school on foot. A.used to cycle B.cycled C.was cycling D.went 26.My father used to go to work by motorbike. Now he __________. A.cycled B.was cycling C.cycles D.used to cycle 27.__________ the film is a bit frightening, I really enjoyed it. A.However B.Nevertheless C.Although D.Despite 28.__________ the silly story, many people enjoyed the film. A.In spite of B.Although C.However D.Nevertheless 28.The film didn’t receive good reviews from critics. __________, many people saw it. A.Although B.In spite of C.Despite D.However 30.We will go on holiday with some friends of __________. A.our B.ours C.us D.we 31.A friend of __________ is coming to stay with me next month. A.me B.my C.I D.mine 32.What shall we do this evening? – We __________ to the cinema. A.go B.could go C.could have gone D.will be going 33.Careless driving __________ accidents on the road. A.will cause B.have caused C.is causing D.is going to cause 34.Nuclear power __________ in the future. A.will replace B.replaced C.will be replaced D.replaces V.Choose the best answer (A, B, C or D). 1.She came to the stadium (in, on, by) bus. 2.They go to work (in, on, by) train. 3.I usually read books while I am (in, on, by) a train. 4.We went to Gothenburg last summer and it was our first time (in, on, by) a tram. 5.He often travels (in, on, by) his car. 6.They prefer not to go (in, on, by) car because it’s more expensive. 7.My children often sleep while they are (in, on, by) a plane. 8.The computer belongs to Nhung. That computer is hers/her/she. 9.Their car is red. We/Our/Ours car is grey. 10.The books are all me/mine/my. 11.What happened to him? He has broken him/his/he arm. 12.Mine/My/Me keys are here on the table. Where are your/yours/us? 13.Is this chair you/your/yours? 14.This time next year my father will work/will be working in the hydro power station. 15.Don’t forget to turn off the lights before you’re leaving/you leave. 16.My brother and I will cycle/will have cycled to school to cut air pollution. 17.By the year 2020, people in my village will use/will be using energy from the sun. 18.What will we do/will we be doing to save electricity? 19.What will happen/will be happened to us when the non-renewable energy sources run out? 20.Wind power is a renewable source because it can be replaced/can replace easily and quickly.

I. Match the words to their definitions. 1. gripping a. funny and interesting 2. scary b. extremely good 3. violent c. causing strong feelings of sadness or sympathy 4. boring d. very surprising, and difficult to believe 5. moving e. not surprising 6. entertaining f. frightening 7. predictable g. using or involving force to hurt or attack 8. hilarious h, very exciting 9. shocking i. not interesting 10. incredible j. extremely funny II. Complete the sentences with the correct adjectives above 1. The film was so ___________ that Mrs. Brown cried at the end 2. Romance move plots have become so __________________ that you can tell exactly what’s coming 3. My mother can’t stand war film because they’re too ___________________. 4. It was an action film, but it was so __________________ that I fell asleep in the middle 5. We laughed all the way through the film. It was so ______________________. 6. That thriller was so ______________. I couldn’t take my eyes off the screen for a second. 7. Sam always has nightmares after watching ____________ movies 8. The ending of The Sixth Sense was really _____________. It surprised me a lot. 9. The Meyerowitz Stories is getting some ______________ reviews and should be one to add your watch list. 10. Most historical movies are both educational and __________________. giúp mk với

Phòng khách nhà bạn Lan có độ cao trần nhà là 3,5 m và chu vi sàn nhà là 20 m. Ba lần chiều rộng phòng khách lớn hơn chiều dài là 6 m. Tinh dien tich phong

Giúp mik vs năng nỉ lun á , 😅😥😓😢😭😭