C

bữa sau bạn nhớ giải thích nữa nha chớ mình không biết tại sao ra đáp án đó đâu

= 32 nha

32

B

Ex2

2 It is a library

3 It is a railway station

4 It is a gym

5 It is a square

6 It is an art gallery

Ex3

1 colder

2 more dangerous

3 more important

4 narrower

5 faster

Ex4

1 than he used to be

2 than it was when I bought it

3 she was a child

4 than I was before

5 than they were ten years ago

\(a,=\dfrac{\sqrt{2}\left(1+\sqrt{2}\right)}{1+\sqrt{2}}=\sqrt{2}\\ b,=\dfrac{\sqrt{5}\left(\sqrt{3}-1\right)}{\sqrt{3}-1}=\sqrt{5}\\ c,=\dfrac{\sqrt{3}\left(1-\sqrt{2}\right)}{2\left(\sqrt{2}-1\right)}=-\dfrac{\sqrt{3}}{2}\\ d,=\dfrac{\sqrt{5}\left(1-\sqrt{2}\right)}{\sqrt{3}\left(1-\sqrt{2}\right)}=\dfrac{\sqrt{5}}{\sqrt{3}}=\dfrac{\sqrt{15}}{3}\\ e,=\dfrac{\sqrt{7}\left(\sqrt{7}+1\right)}{\sqrt{7}+1}=\sqrt{7}\\ f,=\dfrac{\sqrt{5}\left(\sqrt{5}+1\right)}{\sqrt{5}+1}=\sqrt{5}\\ g,=\dfrac{\sqrt{2}\left(\sqrt{5}-1\right)}{\sqrt{5}-1}=\sqrt{2}\\ h,=\dfrac{\sqrt{5}\left(\sqrt{3}-1\right)}{\sqrt{3}-1}=\sqrt{5}\)

b1 nha mn

Kiểm tra nhiêu phút z bạn:)

cứu mik đi mà mọi người ơi T^T

bạn ra đề khó hỉu quá

1. bến còn lại số ô tô là:

           45 - 18 + 17 = 44(chiếc)

                               Đáp số: 44 chiếc ô tô

em ơi trang sách là trang mấy?

\(\left(2x-3\right)\cdot4,8=\left(3x+1\right)\cdot\left(-2,4\right)\)

\(9,6x-14,4=-7,2x-2,4\)

\(9,6x+7,2x=14,4-2,4\)

\(16,8x=12\)

\(x=\dfrac{12}{16,8}=\dfrac{5}{7}\)

x = 5/7