Nhập dãy B gồm N số nguyên (N<=50). Tìm giá trị trung bình của dãy.

(Pc mn nhé)

Nhập dãy A gồm N số thực (N<=100). Tìm GTNN và vị trí của nó.

(bằng Pc mn nhé, hộ e vs)

Dưới áp suất 10 atm một lượng khí có thể tích là 12,5 lít. Nếu nhiệt độ được giữ không đổi và áp suất tăng thêm 1/4 lần áp suất ban đầu thì thể tích của lượng khí này là?

Một quả bóng đá có dung tích 2,5 lít. Người ta bơm không khí ở áp suất 1 atm vào quả bóng. Mỗi lần bơm được 125 cm3 không khí. Biết trước khi bơm, trong quả bóng có không khí ở áp suất 1 atm và nhiệt độ không đổi trong thời gian bơm. Áp suất không khí trong quả bóng sau 20 lần bơm bằng?

A:5atm

B:2,5atm

C:2atm

D:7,5atm

Cho ΔABC có, góc A=62^o, góc B=58^o. Cạnh a=12cm:

a, Tính góc C, cạnh b,c?

b, Tính S△, R, r, ha?

6. She can't be employed because she doesn't have a college degree.

--> If...

7. She walked to the meeting. She was late.

--> If...

8. Unless you promise to retum back, I won't lend you.

--> If...

9. He put off our trip because the weather was terrible.

--> If...

10. Sally doesn't know what she has to do for homework because she was absent from school on Friday.

--> If...

Exercise: Kết hợp câu dùng câu điều kiện.

11. If you do not like this one, I'll bring you another.

--> Unless...

12. Martin failed his driving test last week because he was very nervous.

--> If...

13. He paid me last night. I had enough money to buy a car.

--> If...

14. I stayed up late last night that's why I can't get up early today.

--> If...

15. If you can't arrive at the office earlier, please turn on the airconditioner.

--> Unless...

16. He got troubles, so he couldn't go to the airport on time.

--> If...

17. The car breaks down so often because you don't take good care of it.

--> If...

18. He tells lies to his boss that's why he is fired at once.

--> If...

19. He didn't revise all his lessons, so he failed the exam.

--> If...

20. Rita is exhausted today because she didn't sleep last night.

--> If...

Exercise: Kết hợp câu dùng câu điều kiện.

1. He can't go out because he has to study for his exam.

--> If...

2. She is lazy so she can't pass the exam.

--> If...

3. He smokes too much; that's why he can't get rid of his cough.

--> If...

4. I can't play fooball this aftemoon because I felt tired.

--> If...

5. You always complain about everything that happens in your life, that's why I never want to work in a team with you.

--> If...

6. She can't be employed because she doesn't have a college degree.

--> If...

7. She walked to the meeting. She was late.

--> If...

8. Unless you promise to retum back, I won't lend you.

--> If...

9. He put off our trip because the weather was terrible.

--> If...

10. Sally doesn't know what she has to do for homework because she was absent from school on Friday.

--> If...

Tại sao, chế độ hôn nhân hiện nay đòi hỏi 1 vợ 1 chồng?

Rối wá mọi ng =))