giải giúp tui câu 4 vs giải đc tui cho 5 sao

Một lực F tác dụng lên một bề mặt có diện tích S. Áp suất lên bề mặt đó được tính bằng công thức; A: p = 1/F.S B: p = S/F C: p = F/S D: p = F.S

Lấy ba điểm không thẳng hàng A,B,C.Gạch chéo phần mặt phẳng chứa tất cả các điểm nằm trong ba góc BAC,ACB,CBA.

Biết 8% của số x là 24 Vậy số x là

Trong một gia đình, mẹ nhóm máu AB, sinh con nhóm máu AB. Theo lí thuyết, người bố chắc chắn không mang nhóm máu nào sau đây?

giúp tui vs mọi người ơi , tối tui phải nộp òi

Đọc bài đọc dưới đây và điền T (True) trước câu trả lời đúng với nội dung bài đọc, điên F (False) trước câu trả lời không đúng với nội dung bài đọc. What are myths, legends and folk tales Once upon a time, long, long ago, there lived some really great storytellers. Their stories have been passed down, retold, translated, adapted and, more recently, written down, because everyone loves a good stories. These stories probably include, myths and folktales. A legend is usually based on a true event in the past. Legend usually have a real hero at the centre of the story and they are often set in fantastic place. The story will have been passed on from person to person, sometimes over a very long period of time. A myth is not quite the same as a legend. Sometimes a myth is loosely based on a real event but, more often than not, it is a story that has been created to teach people about something very important and meaningful. Myths are often used to explain the world and major events, which, at the time, people were not able to understand- earthquakes, floods, volcanic, eruptions, the rising and setting of the sun, illness and death. Folktales are usually stories that have been passed down from generation to generation in spoken from. Often we do not know who was the original author and it is possible that some stories might have been concocted author a campfire by a whole group of people. It is quite normal to discover that are many version of the tale, some very similar but others may have only one or two characters in common and take place in totally different settings. ___ 1.In legends, heroes are set in fantastic places. ___ 2.Amongst legends, myths and folktales, only legends are based on true event in the past. ___ 3.Myths are created only for entertainment. ___ 4.Earthquakes, floods and volcanic eruptions are explained in myths. ___ 5.Folktales may be invented around a campfire by a whole group of people. ___ 6.Folk tales have only one version. ___ 7.Folktales are usually passed in written form.

Câu 3 nhé mọi người cho hay nhất và 5 sao đấy

Cho a, b, c là các số thực dương thỏa mãn abc=a+b+c+2. Chứng minh rằng ab+bc+ca ≥ 2(a+b+c)

kể tên một số trung tâm công nghiệp có quy mô rất lớn trên thế giới