Hình như là đề sai hay sao ý bn ạ, chứ tia phân giác của góc BAC thì làm sao cắt được AC.:)

I'd like a kitchen like yours.

They look uch alike, I can't tell them all.

The roads are rough in many areas, so it's hard to travel by road.

Some people are looking at the film poster on the wall.

Coins last approximately twenty years longer than paper notes.

Doing exerise doesn't make you intelligent, bit it does make you lô intelligent.

After has an aspirin, her headache disappeared.

Our summer vacation starts in the end of May and it have lasted for almost three months.

Marie, from class 7A, was very ill with cancer last year and was in hospital for several weeks. She was not at home and get better, but she needed a holiday in the sun to help her recover. Class 8A would like raising some money for Marie to have a holiday. Can you help us? We will have a meeting in the school hall on Friday at four o'clock. Pleasecome and give us your ideas and your help.

1. Many people were made house after the flood.

2. The campaig encourage people to recycle glass, cans and paper.

3. There are many kinds of enviromental pollution such as air pollution and water pollution.

4. The programme was benefit to both the vommunity and individuals.

5. We are worked together for several months to provide good facilities for able people.

6. This project has been funded by volunteering contributions.

làm theo cách lớp mấy hả Vương Minh Hiền

Dân cư thưa thớt ở nội địa Trung và Nam Mỹ vì họ ko tập trung ở trong nội địa mà lại tập trung ở ven biện. Họ tập trung ở ven biển vì ở ven biển có các ngành kinh tế cực kỳ phát triển. Ở trong nội địa thì ko phát triển như ở ngoài ven biển nên chỉ có một số ít dân là sống trong nội địa.

A = 1(2+1)+2(3+1)+3(4+1)+...+99(100+1) A = 1.2+1+2.3+2+3.4+3+...+99.100+99 A = (1.2+2.3+3.4+...+99.100)+(1+2+3+...+99) A = 333300 + 4950 = 338250 Tổng quát: A = 1.3+2.4+3.5+...+(n-1)(n+1) A= (n-1)n(n+1):3 + n(n-1):2 A= (n-1)n(2n+1):6

Giữ bình tĩnh và học tập chăm chỉNgô Hoàng Thanh Vân