Cho hình nón cụt như hình vẽ Biết rằng bán kính của đáy nhỏ là r = 3cm, bán kính của đáy lớn là R = 6cm, độ dài AC = 4cm. Hãy tính diện tích xung quanh, diện tích toàn phần, và thể tích của hình nón cụt

Mọi người giúp e với e đang gấp cảm ơn mọi người rất nhiều

Giải hộ em với em đang gấp ạ :(

I/ Choose the best answer for each of the following sentences (50 points) 1. Every night I open the bedroom windows in _____ to let in some fresh air. A. as B. order C. so D. place 2. That suitcase looks heavy. I ________ you with it. A. help B. am helping C. will help D. helped 3. Sometimes Tom writes a letter to his parents _________ to ask them for some money. A. so as B. so order C. in as D. as order 4. I ________ tell anyone what happened. I promise. A. don't B. didn't C. not shall D. won't 5. Some afternoons at work, my friends have the radio ______ a soccer game. A. list B. listening C. to listen D. for listening 6. I don't want to go out alone. _________you come with me ? A. Do B. Will C. Ought D. Must 7. The boy had a bad cut on his leg and it's _________quite badly. A. bleeding B. hurting C. burning D. falling 8. In case of burning, ________ pain with ice or cold water pack. A. quit B. cancel C. protect D. ease 9. In case of getting fainted, don't _______ the victim to sit or stand. A. let B. make C. force D. leave 10. Please send a/an ________ to Oxford Street. A woman is hurt. A. lorry B. ambulance C. car D. bus 11. Millions of cigarettes .. every year. A. is smoke B. are smoking C. are smoked D. are smoke 12. Gold, as well as silver .. in price, he said. A. have fallen B. has fallen C. fall D. are falling 13. Fred was a really silly boy when we were in high-school. I still remember .. very stupid questions. A. his asking B. him to ask C. asking him D. his being asked 14. .. I like the Rolling Stones. A. No need to say B. Don't need to say C. Needless saying D. Needless to say 15. - Are you sorry that you didn't take pictures? - Yes, I regret .. any. A. not to take B. that I not take C. not taking D. to not taken 16. If he had not given me advice, I .. again. A. would fail B. would be failed C. wouldn't fail D. would have failed 17. We the meeting because nobody could attend. A. are cancelling B. cancel C. cancelled D. cancels 18. departments does this company have? A. How many B. How far C. How often D. How much 19. How many European shareholders . it have? A. does B. has C. have D. do 20. The cold East-North wind always .. strongly in the winter. Today, it .very strongly, stronglier than usual. A. is blowing/ blows B. blows/ is blowing C. blows/ blows D. blow/ blow 21. They .. shortly before the party ended. A. leaved B. left C. leave D. leaves 22. We .. anything at the moment. A. are producing B. are not producing C. will produce D. produce 23. What ...... the company ..? - It produces and sells mobile telephones. A. does/ do B. do/ do C. is/ doing D. are/ doing 24. I . one of your vases yesterday. A. breaked B. have broken C. broke D. break 25. The cutting or replacement of trees in many places in the cityarguments recently. A. has caused B. have caused C. are creating D. created 26. . places in our city are heavily polluted. A. Much B. Mostly C. All of D. Many 27. There were.negative comments on Toms post that he had to remove it. A. too much B. so many C. some of D. plenty 28. His mother ismine, but he is younger than me. A. more old than B. old as C. not as older as D. older than 29. Youre driving ! It is really dangerous in this snowy weather. A. carelessly B. careless C. carelessness D. carefulness 30. do you go shopping ? A. How far B. How much C. How often D. How long Giúp em vs mn oi

I/ Choose the best answer for each of the following sentences (50 points) 1. Every night I open the bedroom windows in _____ to let in some fresh air. A. as B. order C. so D. place 2. That suitcase looks heavy. I ________ you with it. A. help B. am helping C. will help D. helped 3. Sometimes Tom writes a letter to his parents _________ to ask them for some money. A. so as B. so order C. in as D. as order 4. I ________ tell anyone what happened. I promise. A. don't B. didn't C. not shall D. won't 5. Some afternoons at work, my friends have the radio ______ a soccer game. A. list B. listening C. to listen D. for listening 6. I don't want to go out alone. _________you come with me ? A. Do B. Will C. Ought D. Must 7. The boy had a bad cut on his leg and it's _________quite badly. A. bleeding B. hurting C. burning D. falling 8. In case of burning, ________ pain with ice or cold water pack. A. quit B. cancel C. protect D. ease 9. In case of getting fainted, don't _______ the victim to sit or stand. A. let B. make C. force D. leave 10. Please send a/an ________ to Oxford Street. A woman is hurt. A. lorry B. ambulance C. car D. bus 11. Millions of cigarettes .. every year. A. is smoke B. are smoking C. are smoked D. are smoke 12. Gold, as well as silver .. in price, he said. A. have fallen B. has fallen C. fall D. are falling 13. Fred was a really silly boy when we were in high-school. I still remember .. very stupid questions. A. his asking B. him to ask C. asking him D. his being asked 14. .. I like the Rolling Stones. A. No need to say B. Don't need to say C. Needless saying D. Needless to say 15. - Are you sorry that you didn't take pictures? - Yes, I regret .. any. A. not to take B. that I not take C. not taking D. to not taken 16. If he had not given me advice, I .. again. A. would fail B. would be failed C. wouldn't fail D. would have failed 17. We the meeting because nobody could attend. A. are cancelling B. cancel C. cancelled D. cancels 18. departments does this company have? A. How many B. How far C. How often D. How much 19. How many European shareholders . it have? A. does B. has C. have D. do 20. The cold East-North wind always .. strongly in the winter. Today, it .very strongly, stronglier than usual. A. is blowing/ blows B. blows/ is blowing C. blows/ blows D. blow/ blow 21. They .. shortly before the party ended. A. leaved B. left C. leave D. leaves 22. We .. anything at the moment. A. are producing B. are not producing C. will produce D. produce 23. What ...... the company ..? - It produces and sells mobile telephones. A. does/ do B. do/ do C. is/ doing D. are/ doing 24. I . one of your vases yesterday. A. breaked B. have broken C. broke D. break 25. The cutting or replacement of trees in many places in the cityarguments recently. A. has caused B. have caused C. are creating D. created 26. . places in our city are heavily polluted. A. Much B. Mostly C. All of D. Many 27. There were.negative comments on Toms post that he had to remove it. A. too much B. so many C. some of D. plenty 28. His mother ismine, but he is younger than me. A. more old than B. old as C. not as older as D. older than 29. Youre driving ! It is really dangerous in this snowy weather. A. carelessly B. careless C. carelessness D. carefulness 30. do you go shopping ? A. How far B. How much C. How often D. How long Giúp em vs mn oi

viết bài diễn dịch trong đó có sử dụng trạng ngữ (gạnh chân phần trạng ngữ) với câu chủ đề "tình yêu thương kính trọng cha mẹ là tình cảm thiêng liêng cao quý"

Cho ΔABC (AB<AC), M là trung điểm của BC. Từ M hạ MH vuông góc với tia phân giác góc A. Đường thẳng MH cắt AB, AC tại E, F và cắt đường thẳng song song với AB kẻ từ C tại N. Chứng minh: a) ΔMBE = ΔMCN b) BE = CF

Kể về một sở thích của em bằng Tiếng Anh, nhanh nha mn, hôm nai là hạn chót nộp rồi ạ

Làm giúp em trường hợp x=-1 với f(x); g(x); h(x) thôi còn các phần còn lại chỉ cần ghi kết quả không cần trình bày ạ Cho f(x)= (m - 1)x^2 +2mx+3 g(x)= mx^2 + (2m - 1)x + m-1 h(x)= x^2 + (1 - 3m) x + 2m +3 Tìm m để x=-1; x=2; x=-2 là nghiệm của f(x); g(x); h(x)

tìm lỗi sai 1.there is a very (large) statue in (a) center (of) (the) square 2.the furniture (should) (move to) (higher) places (because of) the flood 3.the (performance) was (enough interesting) to attract (hundreds) of people in (the) city 4.you (should) have (your eyes) (check) (regulary)