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4 tháng 12 2023

Have nha bn

 

4 tháng 12 2023

thank you bn nha

4 tháng 12 2023

\(A=\dfrac{6+3^2.3-6+3^2}{3^2+3.3^2-3^4}=\dfrac{\left(6-6\right)+3^2\left(3+1\right)}{3^2\left(1+3-3^2\right)}\\ =\dfrac{0+3^2.4}{3^2.\left(-5\right)}=\dfrac{-4}{5}\)

Put the verbs in brackets into the correct tense:( gthich giúp em với ạ) 1. Bill decided (buy) ............................ a new car rather than a used one. 2. I really dislike (ask) ............................ personal question when I am on duty. 3. Gregory is a vegetarian. He ......................... (not/eat) meat. 4. I ......................... (1ook) for the manager. I can't find him anywhere. 5. We are successful because we ......................... (take) the time to talk to...
Đọc tiếp

Put the verbs in brackets into the correct tense:( gthich giúp em với ạ)

1. Bill decided (buy) ............................ a new car rather than a used one.

2. I really dislike (ask) ............................ personal question when I am on duty.

3. Gregory is a vegetarian. He ......................... (not/eat) meat.

4. I ......................... (1ook) for the manager. I can't find him anywhere.

5. We are successful because we ......................... (take) the time to talk to our customers.

6. John ......................... (deal) with all the enquiries about sales.

7. At the moment we ......................... (make) a training video for Siemens.

8. How long ......................... (she/study) German?

9. When ......................... (he/begin) to study Business Administration?

10. Who ......................... ( write ) the play Dancing at Lughnasa.

11. ......................... (you/visit) any museums when you were in Sofia

12. Henry has a perfect school record. He ......................... (not/be) sick this year.

13. Prices ......................... (go) up. Things are much more expensive this week

14. What ......................... (happen) to you. I waited all afternoon for you.

15. He ......................... already (go)......................... before I (come)......................... there.

16. After my sister (wash)......................... her clothes she (begin)......................... to study.

17. Bill ( work)......................... at the University for 40 years before he ( retire).........................

18. A: Oh. I’ve just realized. I haven’t got any money.

 B: Haven’t you? Well, don’t worry.......................you some (I/lend).

19. A: I’ve got a headache. B: Have you? Wait there and....................an aspirin for you.( I/get)

20. A: Why are you filling that bucket with water? B: ......................... the car (I/wash)

21. While I ......................... (have) a bath, someone ......................... (knock) on the door.

22. When I nearly reached the office, I suddenly ......................... (remember) I ......................... (forget) to turn off the gas stove.

23. Laura felt so tired that she ......................... fall) asleep on the sofa.

24. While Pat ......................... clean) the house, she ......................... (notice) a secret door behind the wardrobe.

25. They had a good rest when all their guests ......................... (leave).

26. When ......................... you, last play) for the national team?

27. I .........................(not, listen), so I missed what the teacher said.

28. It ......................... (rain) hard all day yesterday.

29. James ......................... (drive) home along a deserted street when he ......................... (see) a strange animal.

30. The robbers ......................... (run) away by the time the police......................... arrive).

31. I caught him (climb) ......................... over my wall. I asked him (explain) ......................... but he refused (say) ......................... anything, so in the end I had (let) ......................... him (go) .........................

32. I'm not used to (drive) ......................... on the left. When you see everyone else (do......................... it you'll find it quite easy (do) ......................... yourself.

33. It is pleasant (sit) ......................... by the fire at night and (hear) ......................... the wind (howl) ......................... outside.

34. Suddenly she burst out (cry) ............................ with the words 'I'm sick and tired of (make) ............................ soups and porridges for him. I can't go on (waste............................ my best years.'

35. I remember (enter) ............................ the post office, but I forgot (post) ............................ the letter, which is still in my briefcase.

36. Tell her (not be late) ............................ for school again.

37. The doctor persuaded the patient (stay)............................ in hospital for 3 days more.

38. Mr. Smith encouraged his children (study) ............................ Chinese.

39. We watched the little girl (walk)............................ across the street.

40. Though he often made his little sister (cry) .......................today he was made (cry) ........................ by her.

0
4 tháng 12 2023

Số lớn nhất có 3 chữ số chia hết cho 5 là 995. Nên tổng 2 số là 995

Thêm 35 đơn vị vào số bé được số lớn, vậy số lớn hơn số bé 35 đơn vị

Số bé là: (995 - 35): 2 = 480

Số lớn là: 480 + 35 = 515

Đ.số: 2 số cần tìm là 480 và 515

4 tháng 12 2023

Không đăng linh tinh nha bạn.

5 tháng 12 2023

462,07 23 20,09 207 0

5 tháng 12 2023

345,56 17 20,32 55 46 12

4 tháng 12 2023

Giá xăng tăng thêm mỗi lít số tiền:

27 500 - 25 000 = 2 500 (đồng)

Giá xăng tăng lên so với giá ban đầu phần trăm số tiền là:

\(\dfrac{2500}{25000}\times100\%=10\%\) (giá xăng ban đầu)

Đ.số:........

4 tháng 12 2023

Tỉ số phần trăm của giá dầu sau khi tăng với giá dầu lúc ban đầu là:

\(\dfrac{27500}{25000}\times100\%=110\%\)

Giá dầu đã tăng lên:

\(110\%-100\%=10\%\)

Đ/s: ...

4 tháng 12 2023

Chu vi hình tam giác ABC là: 40 + 45 + 13 = 98(cm)

đ/s...

4 tháng 12 2023

Khí N2

4 tháng 12 2023

Chất nitrogen chiếm 78% không khí