phân tích đa thức thành nhân tử: a) x(x+y)-5x-5y

Bài 2 : tính biến thiên của hàm số

Mọi người giúp em bài này với ạ, em cần nộp gấp trước 12h ạ, em cảm ơn mọi người trước ạ!!!I . Read the following text and decide which answer best fits each numbered blank. The City of London, the capital of United Kingdom is a year-round tourist destination. London is the (1) _____________ city in Europe and located astride the famous (2) _____________of Thames. This is the home for (3) _____________of the international organizations and the city is headed by the Lord Mayor of London. The city of London has its own police (4)____________,called City of London police. London is considered as both business (5) _____________ tourist destination and (6) _____________by millions of people annually. The Heathrow Airport, London considered as the busiest airport (7) _____________the world. City of London provides many attractions for visitors. You can visit London: museums, see Royal palaces and activities, relax on London parks and (8) _____________more places for bed and dine. London is considered an expensive city in the world and (9) _____________ though its home for many foreign migrants, still keeping (10) _____________ traditional heritage and surrounding. (http://www.londonguestguide.com/) 1. A. largest B. larger C. large D. largely 2. A. mountain B. river C. bridge D. road 3. A. little B. a little C. more D. most 4. A. team B. group C. force D. strength 5. A. or B. with C. and D. of 6. A. visit B. visited C. visiting D. to visit 7. A. in B. at C. on D. till 8. A. lot B. a lot C. much D. many 9. A. eve B. event C. ever D.even 10. A. it B. its C. they D. their

I. Circle the best option to complete each sentence ( HTĐ-HTTD- QKĐ-QKTD) 1. She usually _____ two hours a day a. work b. is working c. works d. working 2. Don’t make noise. My mother _________ with her friends a. is talking b. was talking c. talks d. talked 3. Listen! They _________ about the exhibition . Let’s join them a. talk b. talked c. are talking d. have talked 4. Where _____ your sister born? a. were b. was c. did d. is 5. We _____ have white wine, but we _____ red wine a. didn’t/had b. don’t/had c. did/didn’t d. didn’t/have 6. When did you _________ see him? a. recently b. already c. last d. lately 7. I _________ a bath when the phone rang a. was having b. had c. am having d. have 8. I _____ her two week ago a. seen b. was seeing c. saw d. have seen 9. I _____ to his house in 1991 a. moved b. have been moving c. have moved d. was moving 10. He came into the room while they _________ television a. have watched b. watched c. were watching d. have been watching 11. I fell asleep when I _____ television a. am watching b. am being watched c. was watching d. All are correct 12. They _____________ last week a. didn’t come b. came not c. don’t come d. did come 13. Where are Geoffe and Anne? _____________ in the garden a. They’re sitting b. They sitting c. There sitting d. They’re siting 14. It’s very cold today and _____ a. it’s snowing b. it snows c. its snowing d. it snowing 15. She goes to the library twice a week. She _____________ reads books there. a. never b. usually c. rarely d. once 16. At nine o’clock yesterday morning, we _____________ for the bus a. are waiting b. waited c. were waiting d. was waiting 17. Tom _________ his hand when he was cooking the dinner a. burnt b. was burning c. has burnt d. had burnt 18. He _________ me every Sunday, and we often go fishing together a. came to see b. comes to see c. will be coming to see d. All answers are correct 19. The phone rang while she _________ dinner a. cooks b. cooked c. is cooking d. was cooked 20. My sister _________ trouble with her motobike yesterday, so now she has to take the bus to work. a. have b. is having c. was having d. had 21. When my mum got home, _________. a. the dinner be cooked b. I was cooking dinner c. I am cooking dinner d. the dinner deing cooked 22. Emma and Katie usually _________ their grandmother at weekends. a. have visited b. visits c. visit d. are visiting 23. Peter was reading a book by Mark Twain _________ his friends came. a. while b. when c. during d. if 24. Look! That boy _________ an elephant over there a. fed b. was feeding c. feeds d. is feeding 25. He _________ in London at the moment a. studies b. has studied c. is studying d. will study giải hộ mình với

Khoảng cách giữa A(5 ; 4) A(5;4) và B(1 ; 1) B(1;1) là

UNIT 8- SPORTS AND GAMES- ENGLISH 6- hệ 10 năm- ONLINE- đợt 2/30/3/2020 I> 1. Peter gets angry. (never)  ……………………………………….……………………… 2. Tom is very friendly. (usually) ………………………………………………………. 3. I take sugar in my coffee. (sometimes)  ………………………………………………… 4. Ramon is hungry. (often)  ……………………………………………………………...… 5. My grandmother goes for a walk in the evening. (always)  …………………………… 6. Minh helps his father in the kitchen. (usually)  …………………………………..…… 7. They watch TV in the afternoon. (never)  ……………………………………………… 8. Christine smokes after dinner. (seldom)  …………………..……………………………

Một xạ thủ bắn súng có số điểm đạt được sau mỗi lần bắn được ghi lại trong bảng 8 9 10 9 9 10 8 7 9 9 10 7 10 9 8 10 8 9 8 8 10 7 9 9 9 8 7 10 9 9 a) Dấu hiệu cần tìm ở đây là gì? Tính số giá trị của dấu hiệu. b) Lập bảng “tần số”. c) Tính số trung bình cộng của dấu hiệu (làm tròn đến chữ số thập phân thứ nhất). d) Tìm mốt dấu hiệu. Nêu ý nghĩa. e) Dựng biểu đồ đoạn thẳng.

Công dân không tôn trọng lẽ phải khi tạo ra A: tình huống trải nghiệm. B: thu nhập hợp pháp. C: quan hệ hữu nghị. D: mâu thuẫn nội bộ.

Dòng điện trong kim loại là gì? Phân biệt dòng điện và dòng điện trong kim loại?

Choose best answer A, B, or C to complete the sentences. 1. It stars Marlon Brandon as the Godfather. He won an Oscar for his as the boss. A. action B. performance C. direction 2. Shaun of the Dead is a . It's very funny, but it's also a horror film. A. cartoon B. comedy C. sci-fi 3. There's The Princess and the Frog. It's an film from Disney. A. ugly B. animated C. boring 4. The film was so boring. , Jack saw it from beginning to end. A. Therefore B. However C. Although 5. If you want to know which films are on at the cinemas, you should look at the film of this newspaper. A. section B. review C. report 6. I think I did OK in my speech last night I'd had almost no sleep for24 hours. A. Although B. However C. Despite 7. My film this year was Zero Game, the latest thriller by director Xi Dong. A. hobby B. favorite C. love 8. I couldn't sleep being tired. A. However B. Though C. In spite of 9. __________ he is so young, he performs excellently. A. However B. Though C. In spite of Choose the correct answer. 1. I always feel (nervous/ nervously) before examinations. 2. He speaks English (fluent/ fluently). 3. It is an (interesting/ interestingly) book. 4. He drove (careless/ carelessly) and he had an accident. 5. We didn’t go out because it was raining (heavy/ heavily). 6. The football match was very (exciting/ excitingly). I enjoyed it. 7. She tried on the dress and it fitted her (good/ well). 8. He never has accidents because he alwys drives (careful/ carefully). 9. He behaved (strict/ strictly) towards his chidren. 10. It’s too dark to see (clear/ clearly).