mong mn giúp mình với ạ, hứa vote đầy đủ( bài nào làm đc thì làm ah!!)

Giải phương trình : 12² = x(5 - x)

Ai cao thủ giúp em với em mới bắt đầu học toán 9

Mọi người lm ơn giúp em vs ạ ! Em đg cần gấp lắm ạ ! Em cảm ơn 3: Complete the sentences, put in Who, whom, whose, which, or that only if you have to. Put a stick (v) if the sentence is correct without a relative pronoun. 1.Mary, ………..sits next to me, is good at maths. 2.That’s the man …………..Nelly gave the money to. 3.Is this the ring…………….you were looking for? 4.An orphan is a child……………parents are dead. 5.Colin told me about his new job, …………..he’s enjoying very much. 6.This morning I met somebody………….I hadn’t seen for ages. 7.My office, ……….is on the second floor of the building, is very small. 8.The people……….we met at the party were very friendly. 9.Amy,…………car had broken down, was in a very bad mood. 10.The man………………repaired my car is a real expert. 11.The detective lost sight of the man…………he was following. 12.The car…………..won the race looked very futuristic. 13.Is this the article………….you were interested in? 14.That’s Jack, ……………lives next door. 15.I thought I recognized the assistant………….served us. 16.Mr Lee, …………..I met yesterday, teaches chemistry. 17.I enjoyed talking to the people with ………….we had dinner last night. 18.The topic about………….we talked was very interesting. 19.We have just passed a house……………door was painted garishly. 20.We stayed at the Park Hotel, ……….. a friend of ours recommended.

Anh chị giúp e giải thích sao ra chỗ vẽ mp vs A;B;C và cái hình đầu và hình thứ 2 đc k ạ e xin cơn ạ

Cho tam giác đều ABC, Trực tâm H. Kẻ đường cao AD. Một điểm M thuộc cạnh BC. Từ M kẻ ME vuông góc với AB và MF vuông góc với AC. Gọi I là trung điểm của đoạn thẳng AM. Chứng minh rằng a) Tứ giác DEIF là hình thoi. b) Đường thẳng HM đi qua tâm đối xứng của hình thoi DEIF.

vì sao bệnh loãng xương thường hay gặp ở người già và phụ nưx tiền mãn kinh

Tìm từ sai và sửa lại Help e vs mấy đại thừn

Các bạn ơi giúp mk câu này với ạ!!!!!!

1. Hung is ………….. student in my class. A. good B. better C. the best D. a best 2. Ho Chi Minh City is larger and ……….. beautiful than Hanoi. A. more B. as C. most D. the most 3. She has bought this dress ………………Saturday. A. for B. since C. next D. last 4. Minh ……………. in this town since 1987. A. is living B. has lived C. lives D. lived 5. The Sun ….in the East. A. rise B. rose C. rises D. rising 6. That boy has short ………….hair. A. curly B. oval C. tall D. reserved 7. Alexander Graham Bell …………….. the telephone in 1876. A. invent B. invented C. invents D. is inventing 8. You must cover ………………sockets so that children do not try to put anything into them. A. electrical B. dangerous C. safe D. suitable 9. ……………. Was Alexander Graham Bell born? He was born in 1847. A. When B. Where C. Why D. Who 10. A: Can I speak to Lan please? This is Hung. A. Hello, Lan B. Hello,Hung C. How are you? D. How about tomorrow?