CMR : a, x^2 + y^2 = (x+y)^2 - 2xy b, x^3+y^3=(x+y)^3-3xy(x+y) c, x^3-y^3=(x-y)^3+3xy(x-y)

Nêu ưu điểm, nhược điểm của khớp tịnh tiến

Giúp e với ạ Mong mn giúp e E hứa vote 5sao đầy đủ cho mn ạ (lm đúng và đầy đủ ạ ) mong mn giúp e e chỉ còn tối nay để hoàn thành thôi 😢

Làm nhanh giúp mik nhé.mik cần gấp

2. If people …………………… nothing to stop global warming, the weather will change more dramatically in the future.(do) 3. What will you doifyou a person littering in the street? (see) 4. If farms fewer pesticides, the water pollution would be less serious.(use) 5. Ifyou a wish what would you wish for? (have) 6. What if our planet ran out of fresh water? (happen) 7. If I wereyou,I the dishes by hand to save water.(wash) 8. Ifhe neartheconstructionsiteeveryday,hewouldn'thavebadheadache. (not work) II. Choose the word which has differentstress. 1. progressional traditional technological 2. electronic botanic artistic 3. confidential continental conditional 4. symphonic politic dynamic 5. Chinese Taiwanese Japanese 6. attendee disagree interviewee 7. referee refugee degree III. Fill in blank with the correct forms of the given verbs inbrackets. 1. The United Kingdom, an island region, ……………………….. four countries including England, Wales, Scotland and Northern Ireland.(comprise) 2. HawaiiandAlaska US states since 1959. (be) 3. Peoplein England Easter from March 30th to April 2nd.(celebrate) 4. The flight toNewZealand at 9 a.m. tomorrow, so you have to come an hourearlier. (leave) 5. There are 42.4 million immigrants now living in the United States, and the number …………………… bigger. (get) 6.I need to go home now because the movie …………………….. on the HBO channel in 30 minutes. (play) 7. The rules of getting green cards to become a US citizen ……………………over the past several years.(change) 8. We need to be quick, or we will miss Ms. Joan’sclass which in 5 minutes.(start) IV. Choose the best answer. (A, B, C or D) 1. If thefactory dumping poison into the lake, all the fish and other aquatic animals willdie. A.continues B.tocontinue C.continued D. willcontinue 2.Water in the lake has made the fishdie. A.pollution B.pollute C.polluted D.polluting 3. If the factory continues dumping poison into the lake, all thefish_ . A.die B.todie C.dead D. willdie 4. Water pollutionisthe in the lake has made the fishdie. A.contaminating B.contaminate C.contaminated D.contamination 5.If the air wasn’tdirty,I somuch. A. wouldn’t sneezeB.sneeze C.wouldsneeze D. tosneeze 6. Environmentalpollutionhas to lots of health problems. A. caused B.led C.made D.create 7. industrial waste, many fish cannotsurvive. A. Because B.Since C.Becauseof D.Although 8. Oil spills from cargos and shipshave_ many animals and plantsdie. A. made B.caused C.resulted D.leads

Làm nhanh giúp mik bài III ạ Mik cần gấp ạ

Tìm m để phương trình x^2 - (2m-1)x + m^2 + m - 3= 0 có 2 nghiệm phân biệt x1 và x2 sao cho biểu thức A đạt giá trị lớn nhất

Cho mình hỏi C6H12 có 12 đồng phân cấu tạo đúng không?

Làm nhanh giúp mik ạ Đúng + chính xác + nhanh nhất = hay nhất

Em hãy nêu một vài ví dụ về hoạt động hàng ngày phụ thuộc vào điều kiện.