Bài 5. Cho hbh ABCD có AD= 2AB. Gọi M là trung điểm AD. Hạ CE vuông góc AB tại E. Chứng minh EMD = 3MCD

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Fill in each blank with one suitable preposition. 1. It’s 2.5 km…………my school………..the movie theatre. 2. I live ………..Xuan Dieu street……….my grandparents 3. She is talking…………her students in the school yard. 4. My new house is different……….my old house. 5. My father is a farmer. He works………..a farm. 6. Does your aunt work ……….the central hospital? – Yes, she is a nurse there. 7. I’m always busy. I must work ………..early morning until night. 8. Mr. Minh is a journalist. He writes ………..Tuoi Tre newspaper. 9. This apartment is suitable………….my family. 10. I often help my parents ………….the housework after school.

3ba-ab=237 và ab chia hết cho 9

Bài 1: Cho 2 điện tích q1=10^-8(C); q2= 9×10^8 (C) đặt tại 2 điểm A,B cách nhau 15cm trong không khí. Tìm: a) Cường độ điện trường do q2 tác dụng điểm M cách nó 10cm b) Giả sử M nằm trong đoạn A,B. Tính cường độ điện trường tổng hợp tại M c) Tìm điểm C có cường độ điện trường triệt tiêu

IV.Find the mistake and correct 1.Why don’t we camping at this park? 2. What about take a vacation in Sapa? 3. Shall he have an abroad trip in this summer? 4. Her doctor suggested that she loses some weights 5. She suggested to have the car repaired as soon as possible. 6. Let’s traveling abroad this summer holiday.

Giúp e vs ak Viết lại câu sao cho nghĩa không đổi: 1. The last time we saw her was on Christmas day. We haven’t ................................................................................................. 2. I haven’t eaten this kind of food before. This is .......................................................................................................... 3. It started raining an hour ago. It has ............................................................................................................ 4. We haven’t visited my grandfather for two months. The last time ............................................................................................... 5. I have studied English for three years. I began ......................................................................................................... 6. My brother hasn’t seen his best friend for nearly five years. It’s ............................................................................................................... 7. When did you start learning English? How long ..................................................................................................... 8. We started living here fifteen years ago. We have....................................................................................................... 9. The last time she visited me was five years ago. She hasn’t.................................................................................................... 10. I last wrote to my uncle in July. I haven’t ..................................................................................................... 11. It’s long time since we became close friend. We have....................................................................................................... 12. Minh began to collect stamps in 2000. Minh has......................................................................................................

Tam luoi sat hinh chu nhat chieu dai 15/4m chieu rong 2/3m tam luoi chia Thanh 5 phan bang nhau tinh dien tich moi phan

CAligraphy chữ này giùm mình ạ Ngọc Quỳnh

cho hình cuông amke nội tiếp tam giác abc vuông tại A sao cho K thuộc BC ; E thuộc AC ; các cạnh của hìn vuông tỉ lệ với bán kính đường tròn nội tiếp tam giác ABC theo tỉ số (căn 2 cộng 2 ):2 tính các góc tam giác ABC