6 m 3 8 d m 3 =….. m 3   . Số thích hợp điền vào chỗ chấm là 

A. 6.8

B. 6,08

C. 6,008

D. 6,0008

cho đại lượng y tỉ lệ nghịch với đại lượng x biết x=8 thì y=-2

a/ tìm hệ số tỉ lệ

b/hãy biểu diễn y theo x

c/ tính y khi x=6 tìm x khi y=-30

Vẽ tam giác ABC có AB = 6cm, BC = 6cm và CA = 6cm. Vẽ tiếp các điểm M, N, P tương ứng là trung điểm của các đoạn thẳng AB, BC, CA. Có bao nhiêu tam giác được tạo thành từ 6 đỉnh A, B, C, M, N, P?

A. 4

B. 5

C. 6

D. 7

Cho hàm số y=f(x) có bảng biến thiên như sau. Đồ thị hàm số  y = f x  có bao nhiêu điểm cực trị

A.5

B.6

C.3

D.7

Read the text and answer the questions

Vietnam

The Y & Y has many plans to help the community. It encourages all members to take part in different programs. The recycling program can help people save natural resources. The “Rosy Smile” program helps raise fund for the poor children. The “Green Sunday” program makes the city more beautiful with clean streets, plenty of trees and flowers. It gives more green color to the city and it is done on Sunday, so it has the name “Green Sunday”.

There are some more helpful programs such as “helping the elderly and street children”, “supporting cultural-sport”, “young scientists”, etc.

Is the program “Green Sunday” done on weekdays?

___________________________________________________________________

Read the following passage and answer the questions.

Once upon a time there was a young girl called Cinderella. Cinderella was living happily with her family when her mother died. Her father married an evil widow with two daughters. Cinderella’s stepmother and two stepsisters mistreated her. She had to wear old clothes and work hard while the sisters wore fancy clothes and had fun. A good witch helped Cinderella. She turned Cinderella’s old dress into a beautiful gown. Cinderella went to a party and a handsome prince politely invited her to dance with him. He fell in love with her and wanted to find out who she was. Cinderella left the party in a hurry and didn’t tell the prince her name. but she left a glass slipper, and the prince used that to find her. They got married and lived happily ever after.

What did Cinderella’s father do when his wife died?

………………………………………………………………………………………

Nghiệm của phương trình  x 2 + 6 x + 9 = 4 - x là

A. x = 2

B. x = 1 4

C. x =  1 2

D. x = 3

Trong các trường hợp sau đây, trường hợp nào không cần tăng ma sát

A. Phanh xe để xe dừng lại

B. Khi đi trên nền đất trơn.

C. Khi kéo vật trên mặt đất

D. Để ô tô vượt qua chỗ lầy

Mark the letter A, B, C, or D to indicate the correct response to each of the following exchanges.

“____” – “Yes, I love it here. Everything I want is only five minutes away.”

A. It's convenient to live here, isn't it?

B. It's comfortable to live here, isn't it?

C. It's inconvenient to live here, isn't it?

D. It's uncomfortable to live here, isn't it?