1)0,3

2)0,63

3)0,46

Mình chỉ có 9,5 thui

(n\(^2\) + 5n + 7n) ⋮ (n + 2n)

n[n + (5 + 7)]⋮ (3n)

n[n + 12] ⋮ (3n)

⇔ [n + 12] ⋮ 3

n ⋮ 3

n = 3k (k ∈ N)

chịu ko làm đc

Là sao tôi vẫn không hiểu nghĩa của câu hỏi này lắm :/

Bạn chụp thiếu thì phải :?

ah bn ơi trên 2 câu trả lời mới mở đc nhé nó bj lỗi ấy

chịu

khoan đã bọn mày làm thiếu bài tập cách 2 nhé?

Ceremony: The ceremony was held in the school yard, and all students wore uniforms. Contestant: Each contestant tried their best, so the competition became very exciting. Longevity: People believe that exercise is important, because it helps improve longevity. Monk: The monk lives a simple life, but he is respected by many people.

Igloo: The Inuit built an igloo because the weather was extremely cold.

Interact: Students can interact with teachers online, so learning becomes more flexible. Musher: The musher controlled the dogs carefully, while the race was taking place.

Tap: Turn off the tap after use, so that we can save water.

Function: Each part of the machine has its own function, and they work together.

Hyperloop: Hyperloop is a modern transport system, but it is still being developed.

Ferry: We went to the island by ferry, because there was no bridge.

Bullying: Bullying should be stopped, because it seriously affects students’ mental health. Post: The sign was fixed to a post, so everyone could see it clearly.

Statue: The statue was built many years ago, and it represents a national hero.

Wooden: The house is wooden, but it is very strong and beautiful.

• Many people live in coastal areas near the sea.
  (Nhiều người sống ở vùng ven biển.)
• My hometown is a coastal city with beautiful beaches.
  Quê tôi là một thành phố ven biển có những bãi biển đẹp.
• Fishing is an important job in coastal regions.
  Đánh cá là một nghề quan trọng ở các vùng duyên hải.
• Coastal towns often have fresh seafood.
  Các thị trấn ven biển thường có hải sản tươi.
• We visited a coastal village during our summer holiday.
  Chúng tôi đã thăm một ngôi làng ven biển trong kỳ nghỉ hè.

đúng thì cho mik 1 tick nhá mik cảm ơn

Hospitality is a universal feature of Vietnamese ethnic cultures, emphasizing community ties.

khó vậy

Tứ giác có 3 góc vuông thì tứ giác đó là hình chữ nhật.

ok bạn

ghê thật may quá mình chỉ trả lời chứ không hỏi đáp

cs mik

chx đăng ký đc đòi thi lạ đăng ký từ thắng 10 tới h