mọi người giúp em với ạ em cần gấp lắm rùi :((

Cho tam giác ABC có AB<AC. Trên cạnh AC lấy điểm D sao cho AB=AD. Kẻ tia Ax là tia phân giác góc BAC, tia này cắt AD tại H. a) Chứng minh rằng H là trung điểm của cạnh BD. b) Trên tia Ab lấy điểm E sao cho AE=AC. Gọi F là giao điểm của Ax và BC. Chứng minh rằng ba điểm D,E,F cùng nằm trên một đường thẳng

Exercises 3: Điền giới từ phù hợp 1. Her parents live ________ Ha Noi. 2. I live ________ 451 Tran Phu Street. 3. They live _________ Tran Hung Dao Street. 4. Her birthday is _________ Friday, August 20th . 5. They will meet _______ front of the movie theater.

hình ảnh ngọn đèn trong câu thơ:" hoa đèn kia với bóng người khá thương" khiến em liên tưởng đến câu thơ, câu ca dao nào?

B. Tính giá trị biểu thức 40,28-22,5:12,5+1,7

Giúp bài 2 với ạ mk ngu hình lắm

LÀM GIÚP MÌNH VỚI Ạ VI. Read thetext, then answer the questions below it (1 pt) Clothes can tell a lot about person. Some people like very colorful clothes because they want everyone to look at them and they want to be the center of things.Others like to wear nice clothes, but their clothes are not colorful or fancy. They do not like people to look at them. Clothes today are very different from the clothes of the 1800s. One difference is the way they look. For example, in 1800s, all women wore dress. The dresses all had long skirts. But today, women do not wear dresses with long skirts. Sometimes they wear short skirts. Sometimes they wear pants. Another difference between 1800s and today is the cloth. In the 1800s, clothes were made only from natural kinds of cloth. They were made from cotton, wool, silk. But today, there are many kinds of man-made cloth. A lot of clothes are now made from nylon, rayon or polyester. 31. Why do some people like very colorful clothes? ……………………………………………………………………………………. 32. What kind of clothes do other people like to wear? ……………………………………………………………………………………. 33. Were the clothes of the 1800s the same as today ? ……………………………………………………………………………………. 34. What do sometimes women wear today? ……………………………………………………………………………………. 35. Are there many kinds of man-made cloth now? ……………………………………………………………………………………. VII. Complete the second sentence so that it has the same meaning with the first one. (2pts) 36.He didn’t go to the party because he was busy. He was busy, …………………………………………...........................................….. 37.It’s a pity. We can’t speak English well. We wish ………………………………………............................................…………. 38. “Do you like classical music ?”She asked me. She asked me ………………………………………............................................……. 39. The man is my new boss. He is talking to the lady over there. The man ……………………………………………………..................................….. 40. “Why don’t you buy them this picture as a wedding present, Tom ?” Jane suggested ……………………………………………...........................………… 41. Knowing English is very useful. It ............................................................................................................................................ 42. It started to snow at 5 o’clock It has............................................................................................................................................. 43. Noone in my class is taller than Hung Hung ...................................................................................................................................... 44. When did you go to bed last night? What ....................................................................................................................................? 45. I last read a book on September 20th. I haven’t ……………............................................................................................................ VIII. Use the given word to write the second sentence in such a way that is as similar as possible in meaning to the original sentence. Do not change the form of the given word. ( 1pt) 46, The storm destroyed the town completely. (WAS _____________________________________________ 47. Nga is pleaesed to meet her aunt again soon. ( LOOKING) _____________________________________________ 48. They usually wore jeans when they were young. ( USED TO) _____________________________________________

X(x+1)-(x+2)(x-3)=7 giải phương trình bậc nhất 1 ẩn

cho 6,3g hỗn hợp tan hết trong dung dịch Hcl 2M thu được 6,72l khia và dung dịch A thnahf phần % khối lượng Al và Mg trong hỗn hợp lần lượt la

CHUYỂN SANG CÂU ĐIỀU KIỆN LOẠI 3 1. Loan didn’t ask him, so he didn’t tell her. ………………………………………………………………………………………………… 2. Khoa went slowly, so he didn’t catch the bus. ………………………………………………………………………………………………… 3. He was ill, so he was absent yesterday. ………………………………………………………………………………………………… 4. It rained too heavily, so I went to school late …………………………………………………………………………………………… 5. I couldn’t look the word up because I hadn’t got a dictionary. ………………………………………………………………………………………………… 6. I didn’t make any mistakes. I passed my test. ………………………………………………………………………………………………… 7. I didn’t like her, so I didn’t come to her party. ………………………………………………………………………………………………… 8. Phuong was busy. She didn’t visit me yesterday. ………………………………………………………………………………………………… 9. He didn’t have money. He didn’t buy her a gift. ………………………………………………………………………………………………… 10.Mr. Brown drove too fast, so the accident happened ………………………………………………………………………………………………