các cậu ơi cho tớ biết câu trả lơi đi

học sinh lớp 6A khi xếp thành hàng 4 hàng hay 9 hàng đều đủ.biết số h/s của lớp từ 30 đén 40.tính số lớp 6A 

Một con tàu của hợp tác xã thủy sản đánh bắt được 9 tấn 966kg cá gồm cá chim, cá đuối và cá thu. Khối lượng cá thu gấp đôi khối lượng cá chim và cá đuối, khối lượng cá đuối bằng 4/7 khối lượng cá chim. Tính khối lượng mỗi loài cá.

Ấn độ thời phong kiến

tên vương triều

người thành lập

thời gian tồn tại

chính sách cái trị

Một con tàu của hợp tác xã thủy sản đánh bắt được 12 tấn 528kg cá gồm cá chim, cá đuối và cá thu. Khối lượng cá thu gấp đôi khối lượng cá chim và cá đuối, khối lượng cá đuối bằng 5/7 khối lượng cá chim. Tính khối lượng mỗi loài cá.

Cho tập X= {2;3;4;5} Hỏi tập X có bao nhiêu tập hợp con?

Một con tàu của hợp tác xã thủy sản đánh bắt được 3 tấn 885kg cá gồm cá chim, cá đuối và cá thu. Khối lượng cá thu gấp đôi khối lượng cá chim và cá đuối, khối lượng cá đuối bằng 3/2 khối lượng cá chim. Tính khối lượng mỗi loài cá.

hãy viết một đoạn văn ghi lại cảm xúc của em về bài thơ chuyện cổ tích về loài người

gấp

Read the passge anh choose the correct answer

I work for Pentax cameras, in the export department. I don’t have a lot of free time, but I have one special hobby-taking photographs of course! I like taking photographs of flowers, especially in spring. Sometimes, after work, I relax in a bar near my office with friends. My friend, Shigeru, likes singing pop songs in the bar. This has a special name, “karaoke”. I don’t sing- I’m too shy!

13. Where does the writer work?

A. In Pentax B. In the photograph shop

C. In the export department D. In the department store

14. The writer takes photographs when she/ he is free.

A. True B. False

C. Not given in the text D. The writer is not free

15. Which season does the writer like best?

A. Spring B. Summer

C. Autumn D. Winter

16. What does the writer like to take photographs of?

A. Friends B. Bars

C. Summer D. Flowers

17. Where does the writer sometimes relax?

A. At work B. In a bar

C. In the office D. Karaoke room

18. The writer likes to sing with his friend in a bar.

A. True B. False

C. Not given in the text D. Of course

19. The writer does not sing because she/ he is shy.

A. No, the writer is not shy B. True

C. False D. The writer cannot sing

Biết Nm=23,4382.10-27kg. Khối lượng của nitơ theo đơn vịcacbon gần với giá trịnào nhất (1u = 1,6605. 10-27kg

$$\begin{gathered} giải pt \\ cot(2x+\frac{\mathrm{\pi }}{7})=-\sqrt{3} \\ cot(-4x+\frac{\mathrm{\pi }}{12})=\frac{1}{\sqrt{3}} \end{gathered}$$

gấp nữa

Choose A, B, C or D below to complete the passage.

My weekends are fast and exciting. My weekdays are fast and domestic! I…(1).............……two sons, Dylan, 7, and Dakota, 5. Every morning I …(2).............……one hour before them, at 6.00, and I…(3).............…… to the gym. I…(4).............……home and I have breakfast, then I …(5).............…… them to school. On Mondays I always…(6).............… I buy all the food for the week. I often …(7).............……dinner in the evenings, but not every day because I don’t …(8).............……cooking. Fortunately, my husband, Don, likes cooking. On Tuesdays and Thursdays I…(9).............……my father. He …(10).............…… on the next block. Every afternoon I …(11).............…… the kids from school. In the evenings Don and I usually relax but sometimes we visit friends. We never …(12).............…… on Friday evenings because I start work so early on Saturdays.

1. A. want B. like C. love D. have

2. A. get up B. sleep C. eat D. exercise

3. A. have B. use C. go D. start

4. A. walk B. come C. run to D. come to

5. A. take B. pick up C. am talking D. talking

6. A. go market B. go shopping C. go supermarket D. go shop

7. A. buy B. have C. eat D. cook

8. A. like B. hate C. dislike D. want

9. A. see B. meet C. visit D. talk

10. A. lives B. living C. come D. stay

11. A. take B. bring C. carry D. pick up

12. A. go out B. stay C. eat D. talk

Cho tập hợp A=[ -2;1] và B = (0: 8). Tập A hợp B là tập nào? 

Ấn độ thời phong kiến

tên vương triều

người thành lập

thời gian tồn tại

chính sách cái trị

1 It often ( not rain ) ................ in the dry-season

2 Lan ( brush ) .............. herteeth 3 times a day so they ............. veri white and beautitul

3 ................ She usually .............. herhomework before going to play tennis ?

4 My son ( play ) ................. games with his sister on computer now

1+3x+3x^2+x^2 Phân tích đa thức thành nhân tử

Gấp nha mn

1. It’s good to meet people from.............parts of the country. (different/ same/ difficult/ another)

2. This bicycle is broken down. It is in need of............. (repair/ repaired/ repairs/ repairing)

3. Many people do not like the idea of.............on animals (experiment/ experiments/ test/ example)

4. Children.............ten must pay full price for the ticket. (under/ below/ over/ on)

5. The shoes alone.............300.000 VND. (price/ prices/ costs/ cost)

6. Most students face the.............of stress because of heavy programs. (difficult/ problem/ different/ difference)

7. Water freezes at.............degree Celsius. (a hundred/ ninety/ zero/ high)

8. He must.............this fault word before you send it to your teacher. (erase/ make/ write/ do)

9. He takes no pleasure in his sport. “pleasure” means ….. (dislike/ hatred/ happiness/ sadness)

10. World Cup has famous.............in the world. (events/ event/ problem/ thing)

11. I’m not really.............sport. (interested in/ interesting at/ interesting in/ interested at)

12. To Hoai is the best.............of teenagers. (policeman/ teacher/ author/ doctor)

13. Before my mother go to work, she often comes to read the gas.............in her motor. (meter / fuel/ box/ can)

14. In summer, some places have.............in the 40s. (weather/ temperature/ temperatures/ degree)

15. The “b” in lamb is............. (not pronounced/ say/ hear / read)

16. You can find your favorite song in this............. (phone directory/ students book/ songbook/ dictionary)

17. In exercise 4, X and Y in the.............are unknown. (equation/ problem/ place/ space)

18. You can do this exercise by............. (machine/ calculator/ calculation/ electric machine)

19. The.............is round. (egg/ map/ globe/ ruler)

20. Atlas is a book of............. (colors/ drawing/ lines/ map)

21. Cut the sandwiches into............. (triangles/ colors/ circles/ things)

22. She walks the horse.............in a circle. (round/ ahead/ straight/ right)

23. These boys are playing............. (televisions/ marbles/ books/ computers)

24. He.............into the dark point in the room. (thinks/ looks / smiles/ stares)

25. He knew I am a(n).............person and would get things done. (energetic/ lazy/ hard/ amusing)

26. The full-time.............is 1-1. (point/ grade/ score/ mark)

27. We use a.............cassette to play our dance in the picnic. (easy/ stereo/ big/ portable)

28. “Romeo and Juliet” is the.............I like reading best. (book/ film/ play/ dance)

29. A shopkeeper sends me a.............of sweets. (can/ glass/ packet/ bowl)

30. My brother ............. . our room before our mother comes back.

(is breaking/ is sweeping/ is singing/ is dancing)

31. She gives me.............of candy. (cup/ glass/ bowl/ box)

32. We only meet each other by writing letters. We are............. (pen pal/ friend/ family/ classmate)

33. In playing basketball people often say:

a. make a score b. shooting some hoops

c. fair play d. (they say nothing)

34. These girls.............in the playground. (are flying/ are crying/ are studying/ are skipping)

35. We tied his hands together with............. (rope/ band/ paper/ hair)

36. Badminton is a(n).............game. (outdoor/ office/ indoor/ company)

37. This year, how many countries.............in the World Cup? (take part/ look/ enter/ come)

38. I hope you don’t mind the.............in class. (accident/ noise/ love/ loudness)

39. His parents raise chicken in the back............. (yard/ space/ ground/ house)

40. The.............way to get a high score is study hard. (famous/ best/ unpopular/ common)