-4

A = \(x^5\) - 5

A(1) = 1\(^5\) - 5

A(1) = 1 - 5

A(1) = - 4

3 x 25,33 - 1388,44 : 8

= 75,99 - 173,555

= - 97,565

\(\frac{2x}{3y}\) = - \(\frac13\)

\(\frac{2x}{-1}=\) \(\frac{3y}{3}\)

Áp dụng tính chất dãy tỉ số bằng nhau:

\(\frac{2x}{-1}=\) \(\frac{3y}{3}\) = \(\frac{2x+3y}{-1+3}=\) \(\frac72\)

\(x\) = \(\frac72\) : (-2)

\(x\) = - 7/4

y = 7/2

Vậy (x; y) = (-7/4; 7/2)

bn nói rõ câu hỏi hơn một chút đi

Cấu trúc: because + S + V
→ because of + N / V-ing / cụm danh từ

Ví dụ:

• She stayed at home because she was sick.
  → She stayed at home because of her illness.
• He failed the exam because he didn’t study.
  → He failed the exam because of not studying enough.

1. I made it from a piece of wood.

⇒ What did you make it from?

2. She bought it at the shop over there.

⇒ Where did she buy it?

3. It took her three hours to finish the composition.

⇒ How many times did it take her to finish the composition?

4. I need a phone card to phone my parents.

⇒ Why do you need a phone card?

5. It is about 1.500 km from Hue to Ho Chi Minh City.

⇒ How far is it from Hue to Ho Chi Minh City?

6. The bank is opposite the restaurant.

⇒ What is the location of the bank?

7. The dress looked very nice.

⇒ How was the dress?

8. Her neighbor gave her a nice dress.

⇒ Who did the neighbor give a nice dress?

9. They returned to America two weeks ago.

⇒ When did they return to America?

10. He travelled to Nha Trang by coach

⇒ How did he travel to Nha Trang?

1. What did you make that from? (Bạn làm cái đó từ cái gì vậy?)
2. • Hoặc: What is it made of? (Nó được làm bằng chất liệu gì?)
3. Where did she buy that? (Cô ấy đã mua cái đó ở đâu?)
4. When is Daisy's appointment? (Lịch hẹn của Daisy là khi nào?)
5. • Hoặc: What time is Daisy's appointment? (Lịch hẹn của Daisy lúc mấy giờ?)
6. When is her date of birth? (Ngày sinh của cô ấy là khi nào?)
7. • Hoặc: When was she born? (Cô ấy sinh ra khi nào?)
8. Where is the bank? (Ngân hàng ở đâu?)
9. Where was your father last month? (Tháng trước bố bạn ở đâu?)
10. How did he travel to Nha Trang? (Anh ấy đã đi đến Nha Trang bằng phương tiện gì?)
11. What do her brother and sister do after lunch? (Anh trai và em gái cô ấy làm gì sau bữa trưa?)
12. • Hoặc: Who plays sports after lunch? (Ai chơi thể thao sau bữa trưa?)
13. How far is it from your house to the movie theater? (Từ nhà bạn đến rạp chiếu phim bao xa?)
14. What is she worried about? (Cô ấy lo lắng về điều gì?)

1 2 3 4 5 6 7 8 9 10

it was made from a piece of wood by me

+ bạn có thể bỏ "by me" nếu chủ đích không quan tâm người đã làm "nó"

+ bị động:

S+was/were+V3/ed+O

ngu thề

1.

(-): Children didn't plant more trees.

(?): Did children plant more trees?

Đề bài là gì em nhỉ

:0

1 Children didn't plant more trees

Did children plant more trees?

2 Tom wasn't a member of the Youth Club

Was Tom a member of the Youth Club?

3 The school wasn't closed due to the snow

Was the school closed due to the snow?

4 The organization didn't provide shelter for the children

Did the organization provide shelter for the children?

5 Tom didn't go to the hospital to provide food two weeks ago

Did Tom go to the hospital to provide food two weeks ago?

• (+) Children planted more trees.
  (–) Children did not plant more trees.
  (?) Did children plant more trees?
• (+) Tom was a member of the Youth Club.
  (–) Tom was not a member of the Youth Club.
  (?) Was Tom a member of the Youth Club?
• (+) The school was closed due to the snow.
  (–) The school was not closed due to the snow.
  (?) Was the school closed due to the snow?
• (+) The organisation provided shelter for the children.
  (–) The organisation did not provide shelter for the children.
  (?) Did the organisation provide shelter for the children?
• (+) They were at school this morning.
  (–) They were not at school this morning.
  (?) Were they at school this morning?
• (+) Tom went to the hospital to provide food two weeks ago.
  (–) Tom did not go to the hospital to provide food two weeks ago.
  (?) Did Tom go to the hospital to provide food two weeks ago?

Kim loại Natri (Na) tuyệt đối không được bảo quản trong nước vì nó có tính khử rất mạnh và sẽ xảy ra phản ứng hóa học dữ dội ngay lập tức khi tiếp xúc. 

Bảo quản trong nước là bùm 💥🐧