có thể gửi hình ảnh lên cho mình không???tìm sách lại thì hơi lâu bạn

em phải chụp lên chứ,anh có sách đâu mà biết :v

ôi giúp me đi mấy bae=))))

1, How far is it from Mr. Pha's house to the market?

2, Where do the Hani people live?

3. What does Minh enjoy?

4. What time did he leave the party?

Bài 2: 

b: Ta có: \(B=\dfrac{15-5\sqrt{x}}{x-5\sqrt{x}+6}+\dfrac{\sqrt{x}+3}{\sqrt{x}-2}\)

\(=\dfrac{-5\left(\sqrt{x}-3\right)}{\left(\sqrt{x}-3\right)\left(\sqrt{x}-2\right)}+\dfrac{\sqrt{x}+3}{\sqrt{x}-2}\)

\(=\dfrac{\sqrt{x}-2}{\sqrt{x}-2}=1\)

what the hell?

What 

a: Xét ΔODB vuông tại D vàΔOCA vuông tại C có

OB=OA

góc O chung

=>ΔODB=ΔOCA

b: ΔODB=ΔOCA

=>góc OBD=góc OAC

góc OBD+góc IBA=góc OBA

góc OAC+góc IAB=góc OAB

mà góc OBD=góc OAC và góc OAB=góc OBA

nên góc IAB=góc IBA

=>ΔIAB cân tại I

c: IC=ID

ID<IA

=>IC<IA

Bài 10:

a: \(\overrightarrow{AB}+\overrightarrow{BO}+\overrightarrow{OA}\)

\(=\overrightarrow{AO}+\overrightarrow{OA}=\overrightarrow{0}\)

b: \(\overrightarrow{OA}+\overrightarrow{BC}+\overrightarrow{DO}+\overrightarrow{CD}\)

\(=\overrightarrow{OA}+\overrightarrow{DO}+\overrightarrow{BD}\)

\(=\overrightarrow{OA}+\overrightarrow{BO}=\overrightarrow{BA}\)

\(\left(\dfrac{8}{\left(x-4\right)\left(x+4\right)}+\dfrac{1}{x+4}\right):\dfrac{1}{x^2-4x+2x-8}\)

\(\left(\dfrac{8}{\left(x-4\right)\left(x+4\right)}+\dfrac{x-4}{\left(x-4\right)\left(x+4\right)}\right):\dfrac{1}{x\left(x-4\right)+2\left(x-4\right)}\)

\(\dfrac{8+x-4}{\left(x-4\right)\left(x+4\right)}:\dfrac{1}{\left(x-4\right)\left(x+2\right)}=\dfrac{x+4}{\left(x-4\right)\left(x+4\right)}:\dfrac{1}{\left(x-4\right)\left(x+2\right)}\)

\(\dfrac{\left(x+4\right)\left(x-4\right)\left(x+2\right)}{\left(x-4\right)\left(x+4\right)}=x+2\)

\(x^2-9x+20=0\\ x^2-4x-5x+20=0\\ x\left(x-4\right)-5\left(x-4\right)=0\\ \left(x-4\right)\left(x-5\right)=0\)

\(\Leftrightarrow\left\{{}\begin{matrix}x-4=0\\x-5=0\end{matrix}\right.\)

=> x=4 hoặc x=5 tại bt \(x^2-9x+20=0\)

Bài 2

1 a lot of

2 much

3 a lot of - many

4 many

5 much

Bài 3

1 much

2 much

3 a lot of

4 lots of

5 many

Bài 4

1 much

2 many

3 a lot of

4 many

5 lots of

Bài 5

1 any - a - many

3 any

4 lots

5 many - lot

6 lot - any

III

1 desks

2 students

3 televisions

4 couches

5 bookshelves