Đáp án:
Giải thích các bước giải:
đáy thứ hai dài:
2,8 x 7/4 = 4,9 (m)
diện tích hình thang là
(2,8 + 4,9) : 2 x 4,9 = 18,865 (m2)
đáp số 18,865 m2
Em không biết làm câu này ạ, giúp em với
mọi người ơi mọi ngừi owiiiiiiiiiiiiiii.girrr..úppp mìn làm sơ đồ tư duy của 2 bài 18-19 được ko mn
16. Ruth (live) ----------------- with his parents in an apartment. 17. He is writing a postcard and (watch)---------------- TV at the same time. 18. I (see) ------------------- a car accident on this corner yesterday 19. We are looking forward to (hear)………………… from you. 20. The scissors (use) ……………….. to cut the papers. 21. Are they fond of (wear) …………………… jeans? 22. My sister (donate) ……………..clothes and books for poor childen many times. 23. A new house (build) ………………….. here next week. 24. Mr. Quang (paint) …………………..a picture of Ha noi at this time tomorrow. 25.Nga is used to ( walk) ……………. to school. 26. Mr. Quang (never be) ……………………...to London before.
Trường học, nơi nuôi dưỡng những mầm non của đất nước, nơi không chỉ dạy kiến thức mà còn rèn luyện ý thức, nhân cách mỗi con người, Vậy mà, vấn nạn vứt rác vẫn tồn tại hàng ngày. Em hãy viết bài văn nêu suy nghĩ của em về vấn đề các bạn vứt rác bừa bãi ở trường em đang theo học.
Giúp mình vs ạ. Mình cảm ơn trước nhé
Giải hộ mình bài này ạ. Mình cảm ơn Chứng tỏ ( a-b-c ) - ( a+b-c) + ( b-c-a) - ( c-a-b ) + 5 = -2c + 5
Section II: Supply the correct tense for the verbs in brackets 1. When I (be)....................a child. I (drink).....................a lot of milk 2. My family often (go)..............out for a dinner at the weekend 3. She’d like (tell)............................funny stories 4. She prefers (play) .............................piano 5. Nga prefers (listen) .......................rock music to (listen)..................pop music 6. I prefer (take)......................part in sport to(watch)..................them 7. The students prefer (gather)....................in the streets. 8. When Mai (be).....................young ,She (like)................(go)..................to the zoo to see animals 9. At the moment we (sit) in a cafe. We (wait) for the museum to open 10. Thanks for (invite)……………….. me to the birthday party. 11. Davis never (take) ---------------------- the bus to school. 12. He plays volleyball but he (not enjoy)----------------------- it. 13. Most shops usually (open) ------------------------- at 8.00 a.m and (close) --------------------- at 6.00 p.m. 14. School children (wear) ------------------------- uniform on Monday. 15. I want ( buy)------------------- some stamps.
Cho N = 101 - 100 - 99 -98 - ...... - 3 -2 -1 Hãy tính Giúp mik , mik đang cần gấp !
5) Máy biến thế có số vòng dây cuộn sơ cấp là 500 vòng và số vòng dây cuộn thứ cấp là 50000vòng Người ta đặt vào giữa 2 đầu cuộn sơ cấp một hiệu điện thế xoay chiều là 2000V trước khi truyền tải đi một công suất 1000kW, biết rằng điện trở tổng cộng của đường dây tải điện là 200. a) Máy này là tăng thế hay hạ thế? Tại sao? b) Tính hiệu điện thế ở 2 đầu cuộn thứ cấp? c) Tính công suất hao phí?
Question I. Find the word which has different sound in the part underlined. 1. A. wanted B. washed C. worked D. stopped 2. A. cycled B. stayed C. decided D. played 3. A. who B. when C. where D. what 4. A. watched B. danced C. walked D. bored 5. A. needed B. decided C. played D. wanted 6. A. provided B. started C. worked D. decided 7. A. closed B. played C. stopped D. stayed 8. A. whole B. why C. what D. when 9. A. called B. waited C. played D. loved 10. A. looked B. lived C. laughed D. watched 11. A. started B. decided C. worked D. waited 12. A. played B. stopped C. watched D. liked 13. A. whom B. when C. where D. what 14. A. watched B. missed C. walked D. played 15. A. collected B. decided C. played D. wanted 16. A. naked B. watched C. worked D. stopped 17. A. lived B. played C. stayed D. dogged 18. A. looked B. worked C. naked D. liked 19. A. wanted B. waited C. played D. beloved 20. A. missed B. stopped C. wanted D. watched Question II. Choose the correct adjectives. 1. Are you (interesting/ interested) in football? 2. The football match was quite (exciting/ excited). I enjoyed it. 3. It’s sometimes (embarrassing/ embarrassed) when you have to ask people for money 4. Do you usually get (embarrassing/ embarrassed)? 5. I had never expected to get the job. I was really (amazing/ amazed)when I was offer it. 6. She has really very fast. She has made (astonishing/ astonished) progress 7. I didn’t find the situation funny. I was not (amusing/ amused) 8. It was a really (terrifying/ terrified). Afterwards everybody was very (shocking/ shocked) 9. Why do you always look so (boring/ bored)? Is your life really so (boring/ bored)? 10. He’s one of the most (boring/ bored) people I’ve ever met. He never stops talking and he never say anything (interesting/ interested). 11. At first I thought Jake was an interesting/ interested guy, but tonight I felt somewhat boring/ bored with his company. 12. She has really learnt very fast. She has made astonishing/ astonished 13. It was very disappointing/ disappointed not to get the job. 14. Philip was exceptionally annoying/ annoyed at Joanne's behaviour. 15. I thought the program on wildlife was fascinating/ fascinated. I was absolutely fascinating/ fascinated. 16. We were thrilling/ thrilled to hear your good news. 17. It was really terrifying/ terrified. Afterwards, everybody was very shocking/ shocked. 18. The journey took all day and night. They found it very tiring/ tired. 19. Did Tim feel frightening/ frightened when he saw the snake at his feet? 20. Why do you always look so boring/ bored. Is your life really
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