Rewrite as directed:

1. We have a break that lasts thirty minutes.

→ We have a thirty-minute break.

2. We will have a vacaion that last for three months.

→ We have a three-month vacation.

3.It is fresh milk.

→ What fresh milk!

4.What does your father do?

→ What is your father's job?

1.b

2.a

3.b

15 viên là đủ đó bn ạ!

b)3(x-1)^2\(\ge\)0 với mọi x

2(y-3)^2\(\ge\)0 với mọi y

=>3(x-1)^2+2(y-3)^2\(\ge\)0 với mọi x,y

=>3(x-1)^2=0=>(x-1)^2=0=>x=1

=>2(y-3)^2=0=>(y-3)^2=0=>y=3

c)tương tự

gọi số lớn là a

số bé là b

ta có : a - b = 0.9 ( hay a = 0.9+ b )           1

          a x 6 - b =6.4                                 2

Thay a = 0.9 + b vào 2 , ta có :

( 0.9 + b ) x 6 - b = 6.4

5.4 + b x 6 - b = 6.4

b x 5 = 6.4 - 5.4

b x 5 = 1

b = 1 : 5 = 0.2

\(\Rightarrow\)a = 0.2 + 0.9 = 1.1

tick đi please

125+125+125+125+125+125+125+125

tick nhé

Correct mistakes the following sentences

1. How long do => have you and your classmates known each other Tom?

A B C D

2. Everyone in the neighborhood are => is pleased aboutthe new shopping mall

A B C D

3. This dictionary isn't as big than => as the dictionary we use in the library

A B C D

4. He /doesn't know/ that my father is different to => from other people in my family

A B C D

5. Mary is alike => like Tom in different ways at scool as well as at home

A B C D

6.The new machine isn't the same with => as the old one in the library

A B C D

Rewrite nha

1. Stephen Court has just invented an armchair which can play music.

-> An armchair which can play music has just been invented by Stephen Court.

2. He wears black glasses because he doesn't want anybody to regconize him

-> He wears black glasses so that nobody can recognise him.

3. All visitors to the city were impressed by its beauty.

-> Everyone who visited the city were impressed by its beauty.

4. I am only interested in why he did it.

-> The only thing I'm interested in is why he did it.

5. I only regconized him when he came into light.

=> Not until he came into the light did I recognize him.

6. House prices have risen dramatically this year.

-> There has been a dramatic rise in house prices this year.