Tìm x € Z sao cho: a) 7 chia hết cho x + 1 b) x + 14 chia hết cho x + 3 c) 2x + 1 chia hết cho x – 2

một người đi ô tô trong 2 giờ đầu , mỗi giờ đi được 60,5 km ; trong 6 giờ sau , mỗi giờ đi được 66km . Hỏi trung bình mỗi giờ người đó đi được bao nhiêu ki -lô-mét ?

I. Read the passage and choose the best answer (A, B or C) to each statement(2pts) Da Nang is one of the most peaceful cities in Viet Nam with a lot of beautiful beaches. This is a wonderful place for those who love seas and enjoy fresh air. Life here is not so busy as that in Ho Chi Minh City. It is not only a beautiful city but also a safe place to live in. Every evening, after work, you can easily catch the sight of families riding to the beach, leaving their motorbikes. They believe that their vehicles will still be there when they come back. There is no beggar here and the air is fresh. Another good thing is the food. If you love sea food, Da Nang will be the right choice. The food here is very fresh and the price is cheaper than that in Ho Chi Minh City. 1. Da Nang is a good place for sea lovers. A. Right B. Wrong C. Doesn‟t mention 2. The life in Da Nang is busier than that in Ho Chi Minh City. A. Right B. Wrong C. Doesn‟t mention 3. There are beautiful mountains in Da Nang. A. Right B. Wrong C. Doesn‟t mention 4. It is not expensive to buy seafood in Da Nang City. A. Right B. Wrong C. Doesn‟t mention 5. Da Nang is not only peaceful but also beautiful. A. Right B. Wrong C. Doesn‟t mention

Câu 15. Một vật có khối lượng 312g và thể tích là 0.00004m3. Em hãy tính khối lượng riêng, trọng lượng riêng của chất tạo nên vật đó theo đơn vị kg/m3 và N/m3 . m.n giúp mình với. mik cảm ơn m.n nhiều nhiều. mik đg gấp lắm ạ.

Nguyên tử của nguyên tố X có điện tích hạt nhân 16+, 3 lớp electron, lớp electron ngoài cùng có 6 electron. Hãy cho biết vị trí của X trong bảng tuần hoàn và tính chất cơ bản của nó.

giải pt 2x ²+9x+7 giải giúp mình:))

Mn ơi giúp tui với nè BÀi 4 Anh 6 Mơn ạ

Exercise 2: Combine these pairs of sentences, using “who, whom, which, why, when, that or whose” 1. The old man is my grandfather. He lives next door. _________________________________________________________________ 2. I met someone. He said he knew you. _________________________________________________________________ 3. The trousers are too small for me. I bought them yesterday. _________________________________________________________________ 4. The man is a computer expert. You were talking to him. _________________________________________________________________ 5. The new stadium will be opened next month. It can hold 90,000 people. _________________________________________________________________ 6. This is the book. It talks about a famous blind musician. _________________________________________________________________ 7. The postcard was from Harriet. It came this morning. _________________________________________________________________ 8. Can you tell me the time? We can start at the time. _________________________________________________________________ 9. Please tell me the reason. You come late for that reason. _________________________________________________________________ 10. The ladder began to slip. I was standing on the ladder. _________________________________________________________________ Exercise 3: Complete the following conditional sentences using the correct form of the verbs in brackets. 1. If we send an invitation, our friends (come) _______ to our party. 2. If he (give) ______ up smoking, as his doctor orders, he will be soon well again. 3. You must (not leave) ______ the house unless I allow you to go. 4. You (not pass) ______ your driving test unless you drive more carefully. 5. If Claire wears this dress at the party, her friends (be) ______

Lập bảng . So sánh bộ máy nhà nước thời Lý - Trần và Lê sơ: 1.Triều đình 2.Địa phương 3.Đào tạo và tuyển chọn quan lại ( Lưu ý : Lập Bảng nhé )

ai giúp mình giải theo cách tự luận vs ạ