Calli chữ Vui Gấp Trên medibang paint pro

Cho tam giác ABC có trung tuyến AM. Gọi I là trung điểm của AM, BI cắt AC tại D. Chứng minh AD = 1/2 DC

Nêu cách tìm chu vi hình thoi Nêu cách tìm diện tích hình chữ nhật Nêu cách tìm diện tích hình vuông

Tim `x,y,z ` `a)` ` x/2 = y/3=z/4 , x+y+z =81`

A. Give the correct form of verbs. 1. Peter ______________very hard. He never gets high scores. (not/ study) 2. My mother often ______________me English on Saturday evenings. (teach) 3. I like Maths but she ______________Literature. (like) 4. My sister ______________dishes every day. (wash) 5. They ______________breakfast every morning (not/ have) 6. The moon ______________ around the earth. (circle) 7. He______________ German so well because he ______________ from Germany (speak)/(come) 8. Mary ______________very well, but she ______________very fast. (swim)/ (not run) 9. How many lessons ______________a day? (she often /have) 10. ______________ Jim and Joe ______________ the flowers every week? (water) B. Put do, don’t, does, doesn’t, am, is, are, have into the gaps. 1. Where ______________you go shopping? 2. I ______________having lunch with my friends now. 3. Now Mai ______________watching a video clip about science. 4. Mr. Minh ______________our favorite teacher. He teaches Science. 5. What ______________you usually do at break time 6. Nam and Duy ______________not doing their homework. 7. We often ______________Maths lessons on Monday. 8. How ______________you go to school every day? 9. ______________you hungry? 10. ______________your brother like pop music? Writing A. Rearrange the sentences to make meaningful sentences 1. fly/ with my parents/ to Florida/ sometimes/ I/ in spring. → 2. late/ comes/ she/ often/ to school/ in winter. → 3. meet/ at the sports ground/ they/ after dinner/ always/ their friends. → 4. enjoys/ swimming/ in our pool/ always/ in the morning/ she. → 5. My grandmother / at home / always / is / in the evening /. → 6. celebrate / my birthday / I / usually / with my friends /. →

giải thik nx nha 1. The developing countries that are producers of primary products are those that have minerals and foodstuffs _______ by the _______ countries. A. needing / industrialized B. needed / to industrialize C. needed / industrialized D. be needed / industrializing 2. He hates _______ when he is having his after-lunch nap. A. to disturb B. being disturbed C. to have disturbed D. having been disturbed 3. Per capita GNP is just a rough way of _______ the ability of different countries_______ goods and services, _______ into account the fact that they have different populations. A. compared / producing / taking B. comparing / producing / taken C. comparing / to produce / taking D. comparing / producing / to take 4. My friend specially asked that nothing should be said about what she told me. ~ My friend specially asked me _______ anything about what she told me. A. not saying B. not to be said C. not having been said D. not to say

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hép mình với, cả 3 giai đoạn luôn nha Một vật chuyển động qua 3 giai đoạn liên tiếp: giai đoạn 1: chuyển động thẳng đều với vận tốc 10m/s trong thời gian 5s. Giai doan 2: chuyen dong thang nhanh dan deu va sau 50m dat van toc 15m/s. Giai doan 3: chuyen dong tang cham dan deu va dung lai cach noi bat dau chuyen dong thang cham dan deu 50m . a. Thiet lap phuong trinh chuyen dong cua moi giai doan