: Hai số tự nhiên A và B, biết A < B và hai số có chung những đặcđiểm sau: - Là số có 2 chữ số.- Hai chữ số trong mỗi số giống nhau .- Không chia hết cho 2 ; 3 và 5 .a) Tìm 2 số đó. b) Tổng của 2 số đó chia hết cho số tự nhiên nào

Tìm số nguyên dương n nhỏ nhất sao cho các số 2n + 1 và 3n + 1 đều là các số chính phương Giúp mik vs

mn giúp em vs ạ EM SẼ VOSE 5* ạ

Defining relative clauses In a defining relative clause, we include information that identifies or classifies people (1) and things (2). The meaning of the sentence is not complete without the defining relative clause. I Do you remember the woman who used to work in the bookshop? She's a teacher now. 2 Do you have a thing that measures temperature?-You mean a thermometer? Sorry, I don't. We often use (that) at the beginning of a defining relative clause instead of the object (3) or the object of a preposition (4). We usually use (that) after noun phrases containing superlatives (5) or quantifiers (6). 3 I brought the dictionary. Maria wanted it.I brought the dictionary (that) Maria wanted. 4 The film is "Twins' He's talking about it. The film (that) he's talking about is "Twins. 5 Ir's the best film (that) I've seen in years. He was the worst teacher (that) I had at school. 6 There's a lot (that) I don't know about computers. Every person (that) we met had a cold. We can also begin defining relative clauses with who, whom and which. 7 I don't know anyone who/whom I can trust. • There are two rules which you must always obey.

Các bạn giúp mình vẽ bé sans được không ạ

Cho `A=(\sqrt{x}+1)/(\sqrt{x}-3).` Tìm số nguyên `x` để `A` có giá trị là một số nguyên.

nêu ra các công thức hệ thức về cạnh và đường cao của tam giác vuông

Giúp mình với MÌNH ĐANG CẦN GẤP, 12h trưa là hết hạn nộp bài tập của mình r😢

EX15. Write a short paragraph (80-100 words) about one of your leisure activities. You should use the following cues: - What it is - How long you have had it - What its benefits are - Something you would like to change about it In my free time I often do volunteer work at Green City Club. We meet twice a week and go to Hoan Kiem Lake to pick up rubbish and put it in the bins. I joined this club three months ago. I think this leisure activity is very beneficial. It helps to make the environment cleaner, and raises people’s awareness about environmental pollution. It makes my city more attractive to tourists. I also have the opportunity to use English to talk with foreigners when doing my work. In the future, I would like to become the vice head of this club so I can contribute more.

Tìm những phân số tối giản rồi rút gọn: 5/3;9/21;33/77;99/100;45/105;29/14