integer nhé bn

Integer

hi every body. i am hưng. i'm 11 years old and i am very clever

dễ vậy cũng ko biết

1.The engine of the car has to repaired

2.The window was broken and some pictures were taken away by the boys

3.A lot of money is spent on advertising every day

4.A  story is going to be told by teacher 

5.a cake is being cut with a sharp knife by Mary

6.???

7.The victims have been provided with food and clothing

8.English is spoken in almost every corner of the world

9.This machine mustn't be used by you after 5:30 pm

10.After class, the chalk board is always erased by one of the students

Tui mới lớp 6 thui nhưng bài này easy vl :))))))))))))))))))))))))))))))))

1. The engine of carhas to be repaired.

2. The window was broken and some pictures were  taken away by the boys .

3.A lot of money is spent advertising everyday.

4. A story is going to be told by teacher.

5. A cake is being cut with a sharp knife by Mary.

6. The woman with a red hat was looked at by the children.

7. The victims have been provided with food and clothing.

8. English is spoken in almost every corner of the world.

9. This machine mustn't be used after 5:30 p.m.

10. After class, the chalk board is always erased by one of the students.

Áp dụng bđt AM-GM ta có:

\(\frac{x^2}{y+z}+\frac{y+z}{4}\ge2\sqrt{\frac{x^2}{y+z}.\frac{y+z}{4}}=x\)

\(\frac{y^2}{x+z}+\frac{x+z}{4}\ge2\sqrt{\frac{y^2}{x+z}.\frac{x+z}{4}}=y\)

\(\frac{z^2}{y+x}+\frac{y+x}{4}\ge2\sqrt{\frac{z^2}{y+x}.\frac{y+x}{4}}=z\)

Cộng các vế của các bđt trên ta được:

\(P+\frac{x+y+z}{2}\ge x+y+z\)

\(\Rightarrow P\ge\frac{x+y+z}{2}=1\)

Dấu"="Xảy ra \(\Leftrightarrow x=y=z=\frac{2}{3}\)

Áp dụng Svac - xơ:

\(P\ge\frac{\left(x+y+z\right)^2}{2\left(x+y+z\right)}=\frac{2^2}{2.2}=1\)

(Dấu "="\(\Leftrightarrow x=y=z=\frac{2}{3}\))

tự làm

chúng mình kết bằng hưu nhé

1.that

2.in-at

3.to

1.B>because

2.C>was saw

3.C>for

acient

I went to Hoi An Acient Town last week.

bảo vệ sâu bọ có lợi:

tạo điêù kiện cho chúng phát triển và chăm sóc chúng

hạn chế sâu bọ có hại:

- Bắt sâu

-trồng rau trong nhà kính để hạn chế sâu bọ 

B: and

Sửa lại : and => or

Đáp án D nha :We can have a picnic either on Saturday and Sunday
Sửa lại thành and => or. Vì either luôn đi với "or" chứ ko đi với "and"

Chúc bạn học tốt!!

vãi

ko đăng linh tinh