Hãy tìm giá trị của m để phương trình sau có nghiệm kép a) mx^2-2(m-1)x+2=0

hãy viết một đoạn nhật kí của chú bé Lượm trong ngày đi liên lạc cuối cùng Giúp mik vs nhé. Mik cần gấp trc 11h ngày mai

Giải phương trình sau (x-√2)mũi 2-3(x-√3)=0

Bài này giúp em với Tính diện tích xung quanh và diện tích toàn phần của hình lập phương có cạnh 2m 5cm

sơ đồ sau mô tả 1 chuỗi thức ăn . 1 người nông dân sd thuốc bảo về thực vật cho bắp cải của mk . loài sinh vật mà ng nông dân đó muốn tiêu diệt là gì ? bắp cải -> rệp cây -> bọ cánh cứng -> chim nhỏ A . bắp cải B . rệp cây C. bọ cánh cứng D. chim nhỏ

Các bạn giúp mink vs mink cân gấp lắm Bài 2: Một xe máy từ tỉnh A đến tỉnh B với vận tốc 30km/h. Cùng lúc đó một ô tô từ tỉnh B về tỉnh A với vận tốc 45km/h. Hỏi sau mấy giờ hai xe gặp nhau? Biết quãng đường AB dài 110km

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each sentence. Question 5 : Medical supplies and food ________to the flooded area recently A. have sent B. were sent C. have been sent D. are sent Question 6: Despite all the modern technology available to us, we’re still _______ against natural disaster A. helpless B. helpful C. help D. helping Question 7: When the heavy rain stops, rescue workers will start clearing_______ the debris A. in B. up C. on D. with Question 8. This is __________storm I have ever seen A. the most severe B. a severe C. a more severe D. most severe Question 9. If I spoke English, my job_____ a lot easier. A. was B. were C. will be D. would be Question 10: _______ did the typhoon hit the area? - At about 10 a.m A. What B. What time C. How long D. How often Question 11: _________ the weather was fine, we postponed the flight to Bahamas A. Because B. Although C. In spite of D. Unless Mark the letter A, B, C or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each sentence: Question 12: Most people had moved to safe areas when the storm broke ( từ broke nha ) A. begins B. finished C. injured D. happened Question 13: Many people become homeless because of the natural disasters every year, ( từ homeless nha A. poor people B. people with homes C. people without homes D. rich people Mark the letter A, B, C or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges. Question 14: “I managed to pass the test”. – “___________” A. Oh, no B. It’s terrible C. That’s awful! D. That’s a relief! Question 15: “Hospitals have refused to take in any more injured people”. – “_______________” A. That’s shocking! B. I’m very pleased C. How wonderful! D. Wow! Read the passage then choose the best answer for each statement or question: I often hear or read about “natural disasters” – the eruption of Mount St. Helen, a volcano in the state of Washington; Hurricane Andrew in Florida; the floods in the American Midwest; terrible all over the world; huge fires; and so on and so on. But I’ll never forget my first personal experience with the strangeness of nature – “the London Killer Fog” of 1952. It began on Thursday, December 4, when a high – pressure system (warm air) covered southern England. With the freezing – cold air below, heavy fog formed. Pollution from factories, cars, and coal stoves mixed with the fog. The humidity was terrible high, there was no breeze at all. Traffic (cars, trains, and boats) stopped. People couldn’t see, and some walked onto the railroad tracks or into the river. It was hard to breathe, and many people got sick. Finally, on Tuesday, December 9, the wind came and the fog went away. But after that, even more people got sick. Many of them died. Question 16. Which “natural disaster” isn’t mentioned in the text? A. a volcano B. a flood C. a hurricane D. a tornado Question 17. What is his unforgettable personal experience? A. the London killer. B. the heavy fog in London in 1952. C. the strangeness of nature. D. a high – pressure system. Question 18. How long did the “London Killer Fog” last? A. for four days. B. for five days. C. for six days. D. for a week. Question 19. What didn’t happen during the time of “London Killer Fog”? A. heavy rain. B. humidity. C. pollution. D. heavy fog. Question 20. Why did the traffic stop? A. Because of the rain. B. Because of the windy weather. C. Because of the humid weather. D. Because of the heavy fog.

chính sách đô hộ của nhà Lương đối với nước ta

4/5-5/7x=1/7 (quy tắc chuyển vế)

Giúp mik nha tiếng anh lớp 6 ah bài 30 điểm ah