de vay

EX1.Rewrite sentences as directed so that the meaning stay the same.

1.That pencil belongs to Hoa.

Hoa is ......the owner of that pencil.................

2.I spend two hours a day doing my homework.

It .........takes me two hours a day to do my homework................

3.How heavy is that big bag?

How much ......does this big bad weigh?.................

có nha em 

A. Will

1.I wish we (A)will go shopping together

Viết đoạn văn về môn thể thao - Football (Bóng đá)
There are many sports, which are good for our health and popular over the world. Soccer is one of my favorite sports. It is played by two teams consisting of 11 people each team. The general rule is that the ball is kicked by leg and the players get score when having the ball in their goal post. Football is known as “king” among other sports. First, it improves integrity when applying several techniques to create strong power. Second, it not only reduces stress and bad cholesterol of body but also relaxes out spirit after a hard working day. My brother usually plays football every afternoon after work as he is in a local sport club. Moreover, football is not simply one kind of sport, it is an art because of the popularity. Since there is an increasing number of football team over the world such as: Manchester United, Barcelona, Arsenal with professional players. Although I am not able to play well, I love watching football matches as they are interesting and we can also learn from their technique. Furthermore, football is public concern as well as heated debate. Football is now popular through women, who are thought not able to play this kind of sport.

Viết môn thể thao yêu thích bằng tiếng ANh - Badminton (Cầu lông)
Playing exercise not only improves one health but also reduce stress. I choose to play badminton after a hard studying day. Badminton is a famous sport around the world. It is played by children, adult and even od people as it helps to exercise our muscles. Un football, badminton needs a smaller area of place to play. All the 2 players have to do is making the ball pass by a net until it drops on the ground. Although it seems to be easy, it requires lots of pracal skill and flexibility. Moreover, being good at badminton, one will be able to play other sport related to small ball such as table tennis. Nowadays, people tend to pay more attention to sports since it brings several physical and psychological benefits especially badminton. Besides, many high schools and universities teach badminton as a physical subject for students. In my opinion, everyone should take up badminton as a regular sports because of its advantages. Sport is necessary in modern society as human are going to be lazy.

Viết 1 đoạn văn ngắn về môn thể thao bạn yêu thích bằng tiếng Anh - Swimming (Bơi lội)
There are many aqua sports such as: windsurfing, water polo, body board; however, swimming s the most famous. To my point of view, I love swimming for several reasons. First and foremost, swimming helps individual save oneself when being in dangerous situation such as drowning. Supposed you are in a holiday at a beach city, it’s better to know swimming as well as taking part in water activities. Second, there is a large number of people scare of water; therefore, learning swimming can reduce risk and their fear of water. Third, swimming is a beneficial and popular sport among ages. As there is an increasing number of swimming pools in city, more people go there and have a chance to swim. Besides, having a slim body is the dream of almost women. All in all, swimming brings us many outstanding advantages as well as benefits.

mai mik mới có

https://ielts-share.com/360-dong-tu-bat-quy-tac-ban-day-du/

Cậu vào link này nhée

The city of New York, offten called New York City or simply New York is the most populous city in United States.New York is a state in the northeastern United States, and in the 27th-most extensive, fourth-most populous, and seven most densely populated U.S.state. Many landmark in New York are well know to both international and domes visitors with New York State hosting two of the work's ten most-visted tourist : Times Square, Central Park. New York is home to the Statue of Liberty, a symbol of the United States and its ideals of free dome, democracy.

1 . There is a large varity of animals that live in Nairobi National Park . 

đang chờ ý kiến đóng góp

\(\sqrt{x^2-2m}+2.\sqrt{x^2-1}=x\ge0\)

đkxd: \(x^2\ge2m,1\)

Ta có: \(\sqrt{x^2-2m}+2.\sqrt{x^2-1}=x< =>\text{​​}\text{​​}\text{​​}2.\sqrt{x^2-1}=x-\sqrt{x^2-2m}\)

=>\(4.\left(x^2-1\right)=\left(x-\sqrt{x^2-2m}\right)^2\)và \(x-\sqrt{x^2-2m}\ge0< =>x\ge\sqrt{x^2-2m}< =>m\ge0\)

<=>\(4x^2-4=x^2-2x.\sqrt{x^2-2m}+x^2-2m\)

<=>\(2x^2+2m-4=-2x.\sqrt{x^2-2m}\)

<=>\(x^2+m-2=-x.\sqrt{x^2-2m}\)

=>\(\left(x^2+m-2\right)^2=\left(-x\sqrt{x^2-2m}\right)^2\)và \(x^2+m-2\ge0\)

<=>\(x^4+2.\left(m-2\right)x^2+\left(m-2\right)^2=x^4-2m.x^2\)

<=>\(\left(4m-4\right)x^2=-\left(m-2\right)^2\)

-xét m=1=>pt<=>0.x^2=-1(vô lí, loại)

-xét m khác 1

=>\(x^2=\frac{-\left(m-2\right)^2}{4m-4}\)

+Với m>1=>\(x^2=\frac{-\left(m-2\right)^2}{4m-4}< 0\)(vô lí, loại)

+Với 0<_m<1=>\(x^2=\frac{-\left(m-2\right)^2}{4m-4}>0< =>\orbr{\begin{cases}x=-\sqrt{\frac{-\left(m-2\right)^2}{4m-4}}\\x=\sqrt{\frac{-\left(m-2\right)^2}{4m-4}}\end{cases}}\)

Theo điều kiện xác định=>x^2>_1,2m và x^2>_2-m

=>\(\hept{\begin{cases}\frac{-\left(m-2\right)^2}{4m-4}\ge1\\\frac{-\left(m-2\right)^2}{4m-4}\ge2m\end{cases}and\frac{-\left(m-2\right)^2}{4m-4}\ge2-m}< =>\hept{\begin{cases}\frac{\left(m-2\right)^2}{4-4m}\ge1\\\frac{\left(m-2\right)^2}{4-4m}\ge2m\end{cases}and\frac{\left(m-2\right)^2}{4-4m}\ge2-m}\)Vì 4-4m>0=>\(\hept{\begin{cases}\left(m-2\right)^2\ge4-4m\\\left(m-2\right)^2\ge2m\left(4-4m\right)\end{cases}and\left(m-2\right)^2\ge\left(4-4m\right)\left(2-m\right)< =>\hept{\begin{cases}m^2\ge0\\\left(3m-2\right)^2\ge0\end{cases}}}\)và 2/3<_m<_2

Do đó để pt có nghiệm thì 2/3<_m<1

How are you felling now?

The boy wrote the letter last ninght

I want to have some more tea

23  action

24 flied

25 peaceful

27 confidence

28  ENERGY

30 polluted

Không chắc

2. How are you feeling now?

3. The boy wrote the letter last night.

4. I want to have some more tea.

23. action

30. pollution

.......Mình chỉ biết vậy thôi...ahaha...

52:from

53:do

54:much

55:the

56:don't

57:eat

58:in

59:at 

60 :on

61:look

 Dear Mai,

I am writing Ha Long Bay with my family from  June 12^th to 20^th . Do you have a double room with a shower for these days? How much is the room? We would the room facing the sea if it is possible. We don't eat meat but we eat all other kinds of food

We are arriving in Ha Long Bay at about six o'clock on Monday evening. We plan to leave the hotel on Sunday morning.

I look forward to hearing from you soon