What is the name of a famous festival which is held yearly in Boston?
Caribbean festival
Curry festival
Bean festival
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C chữa nek:
Yes I do, I really like traveling by bus. First, it is very convenient because I don't have to psend much fuel or electricity to go to far-away places. (câu "good for the environment" nó kh hợp lý lắm vì xe bus nó vẫn thải ra khí độc). Second, traveling by bus is cheap, so I can save my money. Also it is very safe and comfortable. I don't have to drive by myself and I can relax, talk to my friend and listen to music. In conclusion, traveling by bus is a good choice. (Finally dùng để thêm ý, In conclusion để kết luận. Cái này e đang kết luận nên ph dùng "In conclusion")
-học tốt-
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Exercise 10:
1. The boy said to the girl that he would never see her again.
2. He told her that she was his best friend.
3. Johnny told his mother that he didn’t know how to do that exercise.
4. The children said that they were waiting for the school bus.
5. Mary said that her father had died a year before.
6. John said that he had finished studying his lesson.
7. Mary told John that she couldn’t go to the movies with him.
8. Mary told her friend that she would expect to see her the following Wednesday.
9. He said that he didn’t know what had happened.
10. She said that she had gone to the doctor the day before.
11. He said that he had a toothache.
12. She said that she would write him a prescription.
13. They said that they were going to the drugstore.
14. He said that the doctor had given him some pills.
15. She said that she went to the supermarket every day.
Exercise 11:
1. She asked where my umbrella was.
2. Martin asked us how we had learned English.
3. He asked if I had to do it.
4. The mother asked her daughter where she had been.
5. She asked her boyfriend which dress she should wear.
6. She wanted to know what they were doing.
7. He wanted to know if I was going to the cinema.
8. The teacher wanted to know who spoke English.
9. She asked me how I knew that.
10. My friend asked me where I had met her.
Exercise 12:
1. He asked me if I spoke English.
2. She asked me if I was British or American.
3. She asked me if I had got a computer.
4. He wanted to know if I could type.
5. She wanted to know if I had come by train.
6. He asked her if she would be at the party.
7. She asked me if I could meet her at the station.
8. He asked me if I had seen that car.
9. The mother asked the twins if they had tidied up their room.
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The answer is "breath" or "air." Even the strongest person cannot hold their breath for more than a few minutes.
Câu trả lời là "hơi thở" hoặc "không khí." Ngay cả người mạnh nhất cũng không thể giữ hơi thở của mình quá vài phút.
Bài 1: Thực hiện các phép nhân sau:
\(a) 3x^2 * (5x^2 - 7x + 4) = 15x^4 - 21x^3 + 12x^2 b) (2x^2 - 5x) * (3x^2 - 2x + 1) = 6x^4 - 4x^3 + 2x^2 - 15x^3 + 10x^2 - 5x = 6x^4 - 19x^3 + 12x^2 - 5x c) (x^2 - 8x + 1) * (-2x^3) = -2x^5 + 16x^4 - 2x^3 d) (4x^2 + 2x + 1) * (2x - 1) = 8x^3 - 4x^2 + 4x^2 - 2x + 2x - 1 = 8x^3 - 1 e) (3x^5 - 9x^6 + 12x^9) : (3x) = x^4 - 3x^5 + 4x^8 f) (3x^5 - 9x^6 + 12x^9) : (-3x) = -x^4 + 3x^5 - 4x^8\)
Bài 2: Thực hiện các phép chia sau:
\(a) (6x^3 - 7x^2 - x + 2) : (2x + 1) = 3x^2 - 5x + 2 b) (2x^4 - 10x^3 - x^2 + 15x - 3) : (2x^2 - 3) = x^2 - 5x + 1 c) (x^3 - 7x + 3 - x^2) : (x - 3) = x^2 + 2x - 1 d) (2x^4 - 3x^3 - 3x^2 - 2 + 6x) : (x^2 - 2) = 2x^2 - 3x + 1 e) (9x^4 - 6x^3 + 15x^2 + 2x - 1) : (3x^2 - 2x + 5) = 3x^2 - 1\)
\(f) (9x^5 - 6x^3 + 18x^2 - 35x - 42) : (3x^2 - 7) = 3x^3 + 5x + 6\)
Bài 3: Cho hai đa thức: A(x) = -4x^2 - 2x - 8 + 5x^3 - 7x^2 + 1 và B(x) = -3x^3 + 4x^2 + 9 + x - 2x - 2x^3.
a) Thu gọn và sắp xếp các hạng tử của mỗi đa thức trên theo lũy thừa giảm dần của biến.
\(A(x) = (5x^3) + (-4x^2 - 7x^2) - 2x + (-8 + 1) = 5x^3 - 11x^2 - 2x - 7 B(x) = (-3x^3 - 2x^3) + 4x^2 + (x - 2x) + 9 = -5x^3 + 4x^2 - x + 9\)
b) Tìm đa thức N(x), biết N(x) = A(x) - B(x).
\(N(x) = A(x) - B(x) = (5x^3 - 11x^2 - 2x - 7) - (-5x^3 + 4x^2 - x + 9) = 10x^3 - 15x^2 - x - 16\)
Bài 1: Thực hiện các phép nhân sau:
a) 3x^2 * (5x^2 - 7x + 4) = 15x^4 - 21x^3 + 12x^2
b) (2x^2 - 5x) * (3x^2 - 2x + 1) = 6x^4 - 4x^3 + 2x^2 - 15x^3 + 10x^2 - 5x = 6x^4 - 19x^3 + 12x^2 - 5x
c) (x^2 - 8x + 1) * (-2x^3) = -2x^5 + 16x^4 - 2x^3
d) (4x^2 + 2x + 1) * (2x - 1) = 8x^3 - 4x^2 + 4x^2 - 2x + 2x - 1 = 8x^3 - 1
e) (3x^5 - 9x^6 + 12x^9) : (3x) = x^4 - 3x^5 + 4x^8
f) (3x^5 - 9x^6 + 12x^9) : (-3x) = -x^4 + 3x^5 - 4x^8
Bài 2: Thực hiện các phép chia sau:
a) (6x^3 - 7x^2 - x + 2) : (2x + 1) = 3x^2 - 5x + 2
b) (2x^4 - 10x^3 - x^2 + 15x - 3) : (2x^2 - 3) = x^2 - 5x + 1
c) (x^3 - 7x + 3 - x^2) : (x - 3) = x^2 + 2x - 1
d) (2x^4 - 3x^3 - 3x^2 - 2 + 6x) : (x^2 - 2) = 2x^2 - 3x + 1
e) (9x^4 - 6x^3 + 15x^2 + 2x - 1) : (3x^2 - 2x + 5) = 3x^2 - 1 (Câu này chia hơi lẻ, đại ca kiểm tra lại đề xem có nhầm số nào không nhé).
f) (9x^5 - 6x^3 + 18x^2 - 35x - 42) : (3x^2 - 7) = 3x^3 + 5x + 6
Bài 3: Cho hai đa thức: A(x) = -4x^2 - 2x - 8 + 5x^3 - 7x^2 + 1 và B(x) = -3x^3 + 4x^2 + 9 + x - 2x - 2x^3.
a) Thu gọn và sắp xếp các hạng tử của mỗi đa thức trên theo lũy thừa giảm dần của biến.
A(x) = (5x^3) + (-4x^2 - 7x^2) - 2x + (-8 + 1) = 5x^3 - 11x^2 - 2x - 7
B(x) = (-3x^3 - 2x^3) + 4x^2 + (x - 2x) + 9 = -5x^3 + 4x^2 - x + 9
b) Tìm đa thức N(x), biết N(x) = A(x) - B(x).
N(x) = A(x) - B(x) = (5x^3 - 11x^2 - 2x - 7) - (-5x^3 + 4x^2 - x + 9) = 10x^3 - 15x^2 - x - 16
Caribbean festival
Đáp án đúng là: Caribbean festival ✅
👉 Vì:
❌ Curry festival → không phải lễ hội nổi tiếng ở Boston
❌ Bean festival → không phải lễ hội lớn/đặc trưng
👉 Chọn: Caribbean festival 👍