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J

Jack yêu đời Hỏi từ APP VIETJACK

Lớp 10 Hóa học

· 10:59 23/08/2023

Dùng quỳ tím nhận biết các lọ dd mất nhãn :
Nahso4, na2co3, na2so3,na2s và bacl2

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Đăng Nguyễn Hỏi từ APP VIETJACK

Lớp 9 Tiếng anh

· 10:34 23/08/2023

10. My mother likes trả and my father does, too. ( both...and)

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Hà Nguyễn Thanh Hỏi từ APP VIETJACK

Lớp 6 Văn học

· 10:32 23/08/2023

Môn tiếng Việt lớp 6 tập 1 bài học đường đời đầu tiên câu hỏi số 2

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Hoàng Tuấn Kiệt Hỏi từ APP VIETJACK

Lớp 8 Toán học

· 10:12 23/08/2023

Đội A dự kiến làm số sản phẩm trong 26 ngày do cải tiến kĩ thuật nên năng suất tăng 20% vì thế làm xong trong 18 ngày và thêm 24 sản phẩm . Tính số sản phẩm phải làm theo kế hoạch

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Nhi Uyên

Lớp 10 Tiếng anh

· 09:39 23/08/2023

Reading Part 5: For each question, choose the correct answer.
KERATIN
Keratin is a protein found in hair which helps (21) .......... our hair and keep them healthy. That’s
why hair (22) .......... have used keratin in many of their hair treatments as a selling point. However,
science has (23) ..........that keratin treatments might come with major health concerns in the
long-term.
Keratin treatments are processes that sooth and add shine to your hair. Though called “
Keratin” treatments, those treatments don't need keratin to work. Instead, a solution is (24)
..........to break through the hair and keep all the strands in a straighter position.
The solution used in the treatment contains a harmful chemical called formaldehyde. The chemical
is dangerous not only to you but also the hairdressers performing the treatment. The common side
effects are sore throat, nose bleeds, and scratchy eyes.
Therefore, you should explore other effective hair treatments that don't (25) ..........your health
such as a suitable shampoo or hair-care product. Beauty sometimes (26) ..........with a price, so be
wise in your decisions for hairdressing.
21. A. strengthen B. empower C. improve D. develop
22. A. stores B. departments C. shops D. salons
23. A. studied B. found C. introduced D. led
24. A. added B. inserted C. extended D. put
25. A. alarm B. harm C. warn D. caution
26. A. makes B. goes C. has D. comes

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Nhi Uyên

Lớp 10 Tiếng anh

· 09:34 23/08/2023

I never thought of myself as athletic. (16) ____ . As I grew up, I never worked out or paid
attention to my health. It was not a problem until I started working full-time, I noticed a
lot of changes in my physical and mental health. I didn't have a lot of energy and always
felt depressed.
I’ve got a close friend who is so into Yoga, and one day, she made me go to class with her.
(17) ____. I never thought of myself as a creative and exciting person, but for the first time
in my life, I was so inspired! After a month of doing Yoga every day, my body has had a lot
of positive changes. (18) ____. Yoga also helped me adjust my posture. Whenever I start to
slip, I can stand up straight right away. (19) ____ .
YOGA HAS CHANGED MY LIFE
Yoga soon has become a vital part of my life. (20) ____.
It was not only a journey of how I learned Yoga but also
a journey of how I grow stronger and healthier.

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T

Từ Hữu Long Hỏi từ APP VIETJACK

Lớp 9 Tiếng anh

· 09:52 23/08/2023

Exercise 7: Match each pair of sentences. The first one has been done for you as an example.
0. He's very scared. He can't move.
He's too scared to move.
1. The pie is very hot. You can't eat it.
2. He's very sick. He can't leave the hospital.
→
3. The ice is dangerously thin. You can't walk on it.
4. He's very busy. He can't take a break.
5. The grass is extremely high. 1 can't mow it.
6. It's early. He can't go to bed yet.
7. The chair is very heavy. He can't lift it.
8. He's so tired. He can't do his homework.
9. These tomatoes are still green. You can't pick them yet.
10. He's very old. He can't go to elementary school.

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Trung Trần Quang Hỏi từ APP VIETJACK

Lớp 9 Toán học

· 09:51 23/08/2023

a%=0,15

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Minh Nguyen Hỏi từ APP VIETJACK

Lớp 4 Toán học

· 09:31 23/08/2023

Mẹ hơn con 28 tuổi .Sau 3 năm nữa tuổi mẹ gấp 5 lần tuổi con tính tuổi mỗi người hiện nay

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+1

Lan Nhi Hỏi từ APP VIETJACK

Đã trả lời bởi chuyên gia

Lớp 9 Toán học

· 09:26 23/08/2023

Đã trả lời bởi chuyên gia

Rút gọn
A= $(1 - \frac{a \sqrt{a}}{1 - \sqrt{a}} + \sqrt{a}) \times {(\frac{1 - \sqrt{a}}{a - a})}^{2}$ (với a lớn hơn hoặc bằng 0, a khác 1)

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T

Từ Hữu Long Hỏi từ APP VIETJACK

Lớp 9 Tiếng anh

· 09:26 23/08/2023

Exercise 6: Write sentences using available words.
1. difficult/I/guess what will happen
2. impossible/we/do this project in 24 hours
->
3. important/take a break twice a day
→>>
4. exciting/we/take part in this party
→
5. likely/it/get cold in the library
6. hard/know when a rat will get loose
7. good idea/put on your lab coat
→
8. pleasure/we/have you here
9. honor/we/work in this lab
10. pity/your sister/not to participate in the competition
←

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+1

Nguyen Thao Hỏi từ APP VIETJACK

Lớp 6 Toán học

· 08:59 23/08/2023

350 chia cho a dư 38 và 320 chia a dư 26 . Tìm số tự nhiên a

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Le Bui Hỏi từ APP VIETJACK

Lớp 8 Toán học

· 08:58 23/08/2023

1. Phân tích đa thức sau thành nhân tử bằng cách tách các hạng tử:
A= x^2 +6x+8
B= x^2-7x-18
C= 3x^2+10x-8

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Hồng Dung Nguyễn Hỏi từ APP VIETJACK

Lớp 9 Tiếng anh

· 08:49 23/08/2023

The boys is rehearsing a play for their school show on TV at the moment

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Vũ Khánh Linh Hỏi từ APP VIETJACK

Lớp 8 Tiếng anh

· 08:47 23/08/2023

Around the world, there are a lot of festival

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Khánh Chi Phùng Hỏi từ APP VIETJACK

Lớp 9 Tiếng anh

· 08:40 23/08/2023

II. Turn into reported speech - Statements

12. They said, "We're flying to California next month." →

13. He said, "I'm cutting off the main valve."

14. "If you are late tomorrow, I am going to fire you," he said →

15. "I'm telling you that I didn't break that window", the boy said →

16. "I'm going to change the wheel on my car myself," said Hang.

17. "It's certainly essential to take a long-term view of the situation," the boss said

18. "I passed my driving test first time," said Sam.

19. "It's the first time I've flown", Ha said.

IV. Turn into reported speech - Wh-Questions

1. "Where does your father work?" The teacher asked me

2. "How many people are there in your family?" She asked John

3. Tarn's friend asked him "How long will you stay in England?"

4. "What time does the film begin?" she asked her mom

5. The teacher said to Lien "What makes you so sad?"

6. "How do you go to the airport?" His friend asked him

7. "How much does this dress cost?" Ann asked her mother

8. Mary asked David "Who has broken the door?"

9. "When will your father leave Vietnam for the USA ?^ prime prime Phong asked Nga

10. "How many books do the students need?" The librarian asked my teacher

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Kitty Anh Hỏi từ APP VIETJACK

Lớp 8 Tiếng anh

· 08:20 23/08/2023

1. Some people become _______. A. richer and richer B. richest and richest C. more and more rich D. more rich and richer
2. The tests are _______. A. more difficult and difficult B. more and more difficult C. more difficult and more difficult D. more difficult
3. Life in the modern world is becoming _______. A. more complex B. complexer and complexer C. more complex and complex D. more and more complex
4. Because he was afraid, he walked _______. A. farther and farther B. faster and faster C. more and more fast D. more faster and faster
5. The living standard is getting _______. A. gooder and gooder B. more and more well C. better and better D. more better
6. The _______ you study, the more you will learn. A. hardest B. harder C. most D. much

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Khánh Chi Phùng Hỏi từ APP VIETJACK

Đã trả lời bởi chuyên gia

Lớp 9 Tiếng anh

· 07:55 23/08/2023

Đã trả lời bởi chuyên gia

Fill in: say, tell, ask in the correct form

1 Tony...said... he enjoyed the performance. 2 I can't…for sure, but I think she's divorced. me a lie again.
3 Never…me a lie again

4 The teacher…she was happy with our results.

5 She…me for a loan of £50
6. Don’t….the secret to anybody else.

7 My neighbour always… “hello" whenever he sees me.
8. Please…me if I look okay in this dress.

9 She…the doctor how long she would have to stay in hospital
10.He… he had never seen such a ridiculous film before.

11 "Of course I'll help you," she…to me.

12 Can you…me the way to the nearest bank?
13. Don’t…I didn't … you they were coming.

14 Mum promised to … us a story before we go to bed
15. I wish she’d stop…. favours.

16 She stopped to …a passer-by the time.

17 The twins look alike…I can't one from another.

18 She ….me to meet her at the cinema at 8 o'clock.

19 I remember her…something, I just can't remember exactly what.

21 To…you the truth, this is the first time I've tasted blackberries.

22 She did… me her name but I can't remember it now
23 I don't feel like arguing so we'll…no more about the subject.

II. Turn into reported speech - Statements

1. He said, "I don't know what happened."

2. She said, "I went to the doctor yesterday."

3. He said, "I have a toothache."

4. She said, "I'll write him a prescription."

5. They said, "We're going to the drugstore."

6. He said, "The doctor had given me some pills."

7. She said, "I go to the supermarket every day."

8. He said, "I have received the envelope."

9. They said, "We visited Cannery Row." "

10. She said, "I feel very sick now."

11. He said, "I bought some popcorn last week."

12. They said, "We're flying to California next month."

13. He said, "I'm cutting off the main valve."

14 Mum promised to … us a story before we go to bed

15. I wish she’d stop…. favours.

16 She stopped to …a passer-by the time.

17 The twins look alike…I can't one from another.

18 She ….me to meet her at the cinema at 8 o'clock.

19 I remember her…something, I just can't remember exactly what.

21 To…you the truth, this is the first time I've tasted blackberries.

22 She did… me her name but I can't remember it now

23 I don't feel like arguing so we'll…no more about the subject.

II. Turn into reported speech - Statements

1. He said, "I don't know what happened." →

2. She said, "I went to the doctor yesterday."

3. He said, "I have a toothache." →

4. She said, "I'll write him a prescription."

5. They said, "We're going to the drugstore."

6. He said, "The doctor had given me some pills." →

7. She said, "I go to the supermarket every day." →

8. He said, "I have received the envelope." ->

9. They said, "We visited Cannery Row." "

10. She said, "I feel very sick now."

11. He said, "I bought some popcorn last week."

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Xuan Tran Hỏi từ APP VIETJACK

Đã trả lời bởi chuyên gia

Lớp 11 Vật Lý

· 07:28 23/08/2023

Đã trả lời bởi chuyên gia

Giờ sợ độ cứng k gắn với m1 có tổng số giao động là f1=3Hz nếu mắc cô giáo xo đó với vật nặng m2 thì tổng số là f2=5Hz tìm tần số dao động khi ghép m1 và m2 vào lò xo

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Xuân Việt Hỏi từ APP VIETJACK

Lớp 6 Văn học

· 23:38 22/08/2023

Phân tích cấu tạo của các từ trong đoạn văn, đoạn thơ ( chỉ ra từ đơn, từ ghép, từ láy )
-Trăng đã lên. Mặt sông lấp loáng ánh vàng. Núi Trùm cát trắng đứng sững sừng bên bờ sông thành một khối tim thâm thẫm. Dưới ánh trăng lấp lánh, dòng sông sáng rực lên, những con sóng nhỏ lăn tăn, gợn đều mơn man vỗ nhẹ vào hai bên bờ cát phẳng lì. -Một hôm bà ra đồng thấy một vết chân to, liền đặt bàn chân mình lên ướm thửxem thua kém bao nhiêu. -Long lạnh đáy nước in trời Thành xây khỏi biếc non phơi bóng vàng -Dưới trăng quyên đã gọi hè Đầu tường lửa lựu lập lòe đâm bông

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Le Thi Thuy Duong B1911631 Hỏi từ APP VIETJACK

Lớp 12 Sinh học

· 23:38 22/08/2023

Câu 4: Ở cây cà chua, gen H quy định thân cao là trội hoàn toàn so với gen h quy định tính trạng thân thấp ; gen R quy định tính trạng màu quả đỏ là trội hoàn toàn so với gen * quy định màu quả vàng Khi cho cây cà chua thân cao, quả đỏ thụ phấn bằng hạt phấn của cây thân thấp, quả vàng thì ở F thu được 4 loại kiểu hình gồm 79 cây thân cao, quả đỏ ; 81 cây thân thấp, quả vàng ; 919 cây thân cao, quả vàng và 921 cây thân thấp, qua do. 1 Tính tần số trao đổi chéo giữa hai gen R và H. 2. Giải thích nguyên nhân của tỉ lệ nói trên. Viết sơ đồ lai P den F %.

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t

toiandanh

Lớp 6 Toán học

· 23:06 22/08/2023

C) Tập hợp A các số tự nhiên x mà x - 3 =24

Vẹ cả hình cả giải nha mik tim

đag cần gấp

Trả lời (1) G

Khánh Chi Phùng Hỏi từ APP VIETJACK

Lớp 9 Tiếng anh

· 23:18 22/08/2023

II. Turn into reported speech - Statements

1. He said, "I don't know what happened."

2. She said, "I went to the doctor yesterday."

3. He said, "I have a toothache."

4. She said, "I'll write him a prescription."

5. They said, "We're going to the drugstore."

6. He said, "The doctor had given me some pills."

7. She said, "I go to the supermarket every day."

8. He said, "I have received the envelope."

9. They said, "We visited Cannery Row." "

10. She said, "I feel very sick now."

11. He said, "I bought some popcorn last week."

12. They said, "We're flying to California next month."

13. He said, "I'm cutting off the main valve."

14 Mum promised to … us a story before we go to bed

15. I wish she’d stop…. favours.

16 She stopped to …a passer-by the time.

17 The twins look alike…I can't one from another.

18 She ….me to meet her at the cinema at 8 o'clock.

19 I remember her…something, I just can't remember exactly what.

21 To…you the truth, this is the first time I've tasted blackberries.

22 She did… me her name but I can't remember it now

23 I don't feel like arguing so we'll…no more about the subject.

II. Turn into reported speech - Statements

1. He said, "I don't know what happened." →

2. She said, "I went to the doctor yesterday."

3. He said, "I have a toothache." →

4. She said, "I'll write him a prescription."

5. They said, "We're going to the drugstore."

6. He said, "The doctor had given me some pills." →

7. She said, "I go to the supermarket every day." →

8. He said, "I have received the envelope." ->

9. They said, "We visited Cannery Row." "

10. She said, "I feel very sick now."

11. He said, "I bought some popcorn last week."

Trả lời (2) G

Khánh Chi Phùng Hỏi từ APP VIETJACK

Lớp 9 Tiếng anh

· 22:57 22/08/2023

Fill in: say, tell, ask in the correct form

1 Tony...said... he enjoyed the performance. 2 I can't…for sure, but I think she's divorced. me a lie again.
3 Never…me a lie again

4 The teacher…she was happy with our results.

5 She…me for a loan of £50
6. Don’t….the secret to anybody else.

7 My neighbour always… “hello" whenever he sees me.
8. Please…me if I look okay in this dress.

9 She…the doctor how long she would have to stay in hospital
10.He… he had never seen such a ridiculous film before.

11 "Of course I'll help you," she…to me.

12 Can you…me the way to the nearest bank?
13. Don’t…I didn't … you they were coming.

14 Mum promised to … us a story before we go to bed
15. I wish she’d stop…. favours.

16 She stopped to …a passer-by the time.

17 The twins look alike…I can't one from another.

18 She ….me to meet her at the cinema at 8 o'clock.

19 I remember her…something, I just can't remember exactly what.

21 To…you the truth, this is the first time I've tasted blackberries.

22 She did… me her name but I can't remember it now
23 I don't feel like arguing so we'll…no more about the subject.

II. Turn into reported speech - Statements

1. He said, "I don't know what happened." →

2. She said, "I went to the doctor yesterday."

3. He said, "I have a toothache." →

4. She said, "I'll write him a prescription."

5. They said, "We're going to the drugstore."

6. He said, "The doctor had given me some pills." →

7. She said, "I go to the supermarket every day." →

8. He said, "I have received the envelope." ->

9. They said, "We visited Cannery Row." "

10. She said, "I feel very sick now."

11. He said, "I bought some popcorn last week."

E

12. They said, "We're flying to California next month."

13. He said, "I'm cutting off the main valve."

→

14. "If you are late tomorrow, I am going to fire you," he said →

15. "I'm telling you that I didn't break that window", the boy said →

16. "I'm going to change the wheel on my car myself," said Hang.

17. "It's certainly essential to take a long-term view of the situation," the boss said

18. "I passed my driving test first time," said Sam.

19. "It's the first time I've flown", Ha said.

IV. Turn into reported speech - Wh-Questions

1. "Where does your father work?" The teacher asked me

2. "How many people are there in your family?" She asked John

3. Tam's friend asked him "How long will you stay in England?"

4. "What time does the film begin?" she asked her mom

5. The teacher said to Lien "What makes you so sad?"

6. "How do you go to the airport?" His friend asked him

7. "How much does this dress cost?" Ann asked her mother

8. Mary asked David "Who has broken the door?"

9. "When will your father leave Vietnam for the USA?" Phong asked Nga

10. "How many books do the students need?" The librarian asked my teacher

Trả lời (1) G

Maii Bây Bi Hỏi từ APP VIETJACK

Lớp 8 Toán học

· 22:52 22/08/2023

Cho -1<x<1 tìm giá trị min của biểu thức $\frac{{(3 x - 5)}^{2}}{1 - x^{2}}$

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N

Nguyễn Thị Thương

Lớp 9 Lịch sử

· 22:33 22/08/2023

Nêu nội dung cơ bản và tác động của Chính sách kinh tế mới. Nêu những thành tựu của Liên Xô qua hai kế hoạch 5 năm đầu tiên.

Trả lời (2) G

P

Phuong Thao

Lớp 10 Sinh học

· 22:32 22/08/2023

Khi cho giao phối ruồi giấm thuần chủng có thân xám, cánh dài với ruồi giấm thuần chủng thân cụt, cánh ngắn thì ở F1 toàn thân xám cánh, cánh dài. Cho F1 lai phân tích thu được ruồi có kiểu hình gì? A. Đều có thân xám, cánh cụt. B. Đều có thân đen, cánh cụt. C. 50% Thân xám, cánh dài và 50% thân đen, cánh cụt. D. 75% Thân xám, cánh dài và 25% thân đen, cánh cụt.

Trả lời (1) G

P

Phuong Thao

Lớp 10 Sinh học

· 22:32 22/08/2023

Cấu trúc bậc 3 của một protein:

A. là trình tự sắp xếp các axit amin trong chuỗi axit amin.

B. có dạng các chuỗi xoắn lò xo và dạng nếp gấp của một chuỗi axit amin.

C. là dạng cuộn gập thành khối cầu theo không gian ba chiều của chuỗi axit amin.

D. là cấu trúc của một số loại protein gồm hai hoặc nhiều chuỗi axit amin cùng loại hay khác loại kết hợp với nhau

Trả lời (2) G

Đỗ Kiên

Lớp 10 Vật Lý

· 22:27 22/08/2023

một chiếc xuồng máy khi đi xuôi dòng qua điểm a trên sông thì gặp một chiếc phao đang suôi theo dòng nước . thuyền đi đến b cách a 2,5 kmthì chạy lại cđ ngược dòng gặp phao ở điểm cách b 1,5km. Thời gian 2 lần gặp phao là 1h . trong cả 2 lần cả đi và về vận tốc của xuồng đối với nước là không đổi . tìm V nc-bờ

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