ai GT cho mk hiểu cái : ' thuật toán Euclide '

tìm a,b biết rằng a/3=b/4 và ab=48

Tại sao trong một số vụ sét đánh,lớp vỏ tươi trên thân cây có thể bị tước ra (bong tróc) thành những mảng lớn?

Viết dưới dạng tích các tổng sau 1)ab+ac 2)ab-ac+ad 3)ax-bx-cx+dx 4)a(b+c)-d(b+c) 5)ac-ad+bc-bd 6)ax+by+bx+ay GIÚP MIK VỚI:)

Giúp e với ak E cảm ơn nhiều :)

Il. OCABULARY AND EXPRESSION A/ Choose the word or phrase (a, b, c or d) that best fits the blank space in each sentence or substitutes for the underlined word or phrase. 1. weekends, the three boys helped Mr. Parker with farm work. a. From b. in 2. My home village is about 30 kilometers c. Since d. On the north of the city. a. in 3. He is now living with his family b. from c. to d. at a. in b. on a farm. c. at of a historical hero on the mountain. c. shrine d. from 4. Many tourists visit the a. church 5. We had an a. exchange 6. My brother is a university student, but he works the evenings. a. all the time 7. OK. I'll meet you at the main b. mosque d. temple student from Spain staying with us last year. b. interchange c. university d. abroad as a waiter in b. full-time c. part-time to the Plaza at six o'clock. d. sometime a. arrival b. access c. highway d. entrance 8. Everyone felt tired and hungry, so they sat down and took a(n) b. enjoyment a. relax 9. When she d. snack C. rest the top of the stairs, her heart was pounding. c. stepped a. went b. reached d. traveled 10. We spent an enjoyable evening boating in the river. b. boring a. pleasant c. comfortable d. free B. Use the correct form of the word given to complete each sentence. 11. Children seem to have lost their 12. Most of the in reading. (enjoy) have lived here all their lives. (village) (relax) 13. She listens to classical music for 14. I find this piece of music very 15. He made a (rest) of Roman coins and medals. (collect) II. GRAMMAR AND STRUCTURE A Choose the word or phrase (a, b, c or d) that best fits the blank space in each sentence. into the village. 1. They took a rest under a banyan tree before c. walked d. they walk a. walk b. walking 2. I am going to have my car washed b. in tomorrow evening. d. Ø c. by part in the game, but he cannot because of a. on 3. Peter wishes that he his injured leg. b. is taking c. wouldn't take d. were taking a. can take 4. They b. were working c. have been working d. are working I was in grade 3. c. until here since 2003. a. worked 5. I've been learning English a. before d. after b. since ATRIP TO THE COUNTRYSIDE 29

Làm hộ mik vs nhé ...♥️♥️❤️❤️❤️ và cho mình hỏi là làm sao để học giỏi Tiếng Anh hoặc nên tải ứng dụng gì để học giỏi Tiếng Anh

bài `II` ; `IV` ; `VI` ; `VII` Cố giúp mik nhé!

Hoà tan 11 gam hỗn hợp Al , Fe trong dung dịch H2SO4 loãng thu được 8,96 lít khí H2 ( đktc) nếu hòa tan 5,5g hỗn hợp này trong dung dịch H2SO4 đặc dư thu được lượng khí SO2 là

, Supply the correct forms of the verbs. Use these modals in the main clause: can, could, may, might, should, ought to, or must. Alternatives are possible. 1. If you 2. If you (not understand/ help) your glasses. (want/ wear) to see clearly, you the lesson, I you with your homework. no. still ill tomorrow, she your bike ifI early if he at home. (be/ stay) it carefully. (borrow/ ride) to get to Montevideo on time. 3. If Jane 4. 5. Mark (leave/ want) coming tonight, he strong enough, we 6. If he next week. (not be/ come) 7. If the wind sure. (be/ go) sailing, but I''m not 8. You your baby to the doctor's if his temperature up again. (take/ go) 9. If you work early, you a video recorder, he for a drink with us. (finish/ come) 10. If Jack he wants. (have/ record) any programme