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4 tháng 6 2024

a = 2; b = 6; c = 3

4 tháng 6 2024

mấy bạn trình bày hộ mình nha

4 tháng 6 2024

\(\Leftrightarrow\left[{}\begin{matrix}x-1=0\\3+x=0\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=1\\x=-3\end{matrix}\right.\)

3 tháng 6 2024

12 A

13 C

14 B

15 D

19 C

20 A

21 B

22 D

23 D

24 A

III. Choose the best answer to complete each of the following sentences. 1. She __________ from England.              A. come                   B.comes                               C. don’t come          D. goes 2. __________ She __________ French?             A. Do / speaks                    B. Does / speaks                   C. Is /...
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III. Choose the best answer to complete each of the following sentences.

1. She __________ from England.             

A. come                   B.comes                               C. don’t come          D. goes

2. __________ She __________ French?            

A. Do / speaks                    B. Does / speaks                   C. Is / speak                          D. Does / speak

3. She __________ from America.                                 

A. doesn’t come                 B. don’t comes                     C. doesn’t comes                  D. does comes

4. I __________ a bath now. Wait mea minute.            

A. have                                B. am have                            C. am having                        D. is having

5. He__________ a glass of lemonade before breakfast.                                             

A. is                                     B. have                                  C. has                                    D. does

6. __________ he __________ three children?             

A. Do / have                       B. Does / has                         C. Does / have                      D. Is / have

7. He __________ television at the moment.

A. watch                              B. watches                            C. is watching                       D. is watch

8. __________ Huong 10 years old?                                                                             

A. are                                   B. is                                       C. do                                      D. does

9. My classmates __________ on picnic every month. 

A. went                                B. goes                                  C. going                                 D. go

10. " __________ do you travel to school?" ____ "By bus."                                       

A. How                                B. What                                 C. Why                                  D. Where

11. I __________ know the correct answer.

A. am not                            B. not                                     C. don’t                                 D. doesn’t

12. We enjoy our summer camping _________ foreign friends.

A. with                                 B. of                                        C. in                                        D. at

13. _________the spring, I always ride my bike

A. On                                   B. At                                       C. In                                        D. For

14. What _________Ba often do on Sundays? He plays soccer.

A. is                                     B. does                                   C. do                                       D. would

15. 7. He doesn’t have _________ money.

A. a                                      B.an                                        C. some                                  D. any

19. “_________ books are they?” ___ They’re mine.

A. What                               B.  Who                                  C. Whose                               D. Which

20. Don’t buy _________bread at the shop. There’s a lot of in the kitchen.

A. any                                  B. some                                  C. a                                         D. many

21. He _________ the cinema often.

A. don’t goes                      B. doesn’t goes                      C. doesn’t go                         D. don’t go

22. How _________ your father _________to work?

A. do – travel                      B. is - travel                          C. are – travel                   D. does – travel

23. You should _________ physical exercise regularly.

A. have                                B. talk                                    C. play                                  D. do

24. 8. _________ Bobby often ________ physics experiment after school?

A. Does – do                       B. Is – do                                C. Does – doing                   D. Is – does

25. We _________ to the judo club twice a month.

A. go                                    B. have                                   C. make                                D. take

26. 21. What time does Nga ________ every morning?

A. gets up                            B. get up                                 C. get                                    D. gets

27. ________ is your brother? __ he is thirteen.

A. What time                      B. How far                             C. How old                           D. How long

28. Nam ________ football now. He’s tired.

A. doesn’t play                   B. plays                                  C. is playing                   D. isn’t playing

29. School ________ at 4.30 pm every day.

A. finish                              B. finishes                              C.  D. go                               D. have

30. I often ________ my homework ________ school.

A. study – at                        B. am doing – after               C. do – after                     D. does – before

5
3 tháng 6 2024

III. Choose the best answer to complete each of the following sentences.

1. She __________ from England.             

A. come                   B.comes                               C. don’t come          D. goes

2. __________ She __________ French?            

A. Do / speaks                    B. Does / speaks                   C. Is / speak                          D. Does / speak

3. She __________ from America.                                 

A. doesn’t come                 B. don’t comes                     C. doesn’t comes                  D. does comes

4. I __________ a bath now. Wait mea minute.            

A. have                                B. am have                            C. am having                        D. is having

5. He__________ a glass of lemonade before breakfast.                                             

A. is                                     B. have                                  C. has                                    D. does

6. __________ he __________ three children?             

A. Do / have                       B. Does / has                         C. Does / have                      D. Is / have

7. He __________ television at the moment.

A. watch                              B. watches                            C. is watching                       D. is watch

8. __________ Huong 10 years old?                                                                             

A. are                                   B. is                                       C. do                                      D. does

9. My classmates __________ on picnic every month. 

A. went                                B. goes                                  C. going                                 D. go

10. " __________ do you travel to school?" ____ "By bus."                                       

A. How                                B. What                                 C. Why                                  D. Where

3 tháng 6 2024

11. I __________ know the correct answer.

A. am not                            B. not                                     C. don’t                                 D. doesn’t

12. We enjoy our summer camping _________ foreign friends.

A. with                                 B. of                                        C. in                                        D. at

13. _________the spring, I always ride my bike

A. On                                   B. At                                       C. In                                        D. For

14. What _________Ba often do on Sundays? He plays soccer.

A. is                                     B. does                                   C. do                                       D. would

15. 7. He doesn’t have _________ money.

A. a                                      B.an                                        C. some                                  D. any

19. “_________ books are they?” ___ They’re mine.

A. What                               B.  Who                                  C. Whose                               D. Which

20. Don’t buy _________bread at the shop. There’s a lot of in the kitchen.

A. any                                  B. some                                  C. a                                         D. many

TH
Thầy Hùng Olm
Manager VIP
3 tháng 6 2024

ATP em nhé

 

3 tháng 6 2024

Đây là một câu hỏi có trong đề cương ôn HSG của mình đừng ai trách mình ko để đúng lớp,mk lớp 6

3 tháng 6 2024

Ta thấy trong 3 số thì số b là nhỏ nhất

b kém a 10 lần

b kém c 100 lần 

Tổng a + b + c = 100b + b + 10b = 111b = 221,778

Suy ra b = 1,998

Do đó số a là 19,98; số c là: 199,8

Vậy số thập phân a cần tìm là 19,98.

Diện tích xung quanh là:

\(\left(25+12\right)\cdot2\cdot2,5=5\cdot37=185\left(m^2\right)\)

Diện tích cần lát gạch là:

\(185+25\cdot12=185+300=485\left(m^2\right)\)=4850000(cm2)

Diện tích 1 viên gạch là 502=2500(cm2)

Số viên gạch cần dùng là:

4850000:2500=1940(viên)

=>Chọn D

3 tháng 6 2024

50 cm = 0.5 m

Diện tích xung quanh bể bơi : 

( 25 + 12 ) . 2.5 . 2 = 185 ( m2 ) 

Diện tích đáy bể : 

25 . 12 = 300 ( m2 ) 

Diện tích cần lát gạch : 

185 + 300 = 485 ( m2 ) 

Số gạch cần để lát : 

485 : ( 0.5 . 0.5 )  = 1940 ( viên ) 

AH
Akai Haruma
Giáo viên
3 tháng 6 2024

Yêu cầu đề là gì bạn cần nêu rõ ra nhé.

4 tháng 6 2024

1 bỏ for

2 more lazier => lazier

3 kind => kinds

4 interested => interesting

5 very => much

4 tháng 6 2024

1 A

2 B

3 C

4 D

5 A