1. yours
2. his
3. hers
4. ours
5. mine
6. theirs
7. yours
8. his
9. ours
10. mine

1. My city is dynamic and noisy. What about ...yours.... , Andew.

2. Ben bought a new wireless TV last week. It's ....his.....

3. This notebook is ......hers.... . It has her name on it .

4. That magazine is .......ours.... . We bought it yesterday. 

5. I think those keys are .....mine... . I left them on the sofa.

6. Do Jill and Rose live in that apartment? - Yes, it's theirs

7. Is that car ....yours......... , Mandy?

8. Are you sure that laptop belongs to Andy? - Yes, it's ..hers...........

9. My sisters and I drew these pictures. They're .....theirs.......

10. We don't share the same interests. His hoppy is playing golf, but .....mine....... is playing tennis

1. We will go for a long walk soon.
--> We will not go for a long walk soon.
--> Will we go for a long walk soon?
2. A lift will take us to the top floor of the hotel.
--> A lift will not take us to the top floor of the hotel.
--> Will a lift take us to the top floor of the hotel?
3. She will meet him tomorrow.
--> She will not meet him tomorrow.
--> Will she meet him tomorrow?
4. He will play games online with his friends.
--> He will not play games online with his friends.
--> Will he play games online with his friends?
5. It will be quite impossible.
--> It will not be quite impossible.
--> Will it be quite impossible?
6. They will understand your problem.
--> They will not understand your problem.
--> Will they understand your problem?
7. He will come at two o’clock tomorrow.
--> He will not come at two o’clock tomorrow.
--> Will he come at two o’clock tomorrow?
8. The new park will cover a very great area.
--> The new park will not cover a very great area.
--> Will the new park cover a very great area?
9. They will know the answer tomorrow.
--> They will not know the answer tomorrow.
--> Will they know the answer tomorrow?
10. The teacher will give us a test next week.
--> The teacher will not give us a test next week.
--> Will the teacher give us a test next week?

Ta có: \(\dfrac{x}{6}=\dfrac{14}{-y}=\dfrac{-14}{y}=\dfrac{z}{60}=\dfrac{2}{3}\Rightarrow\left\{{}\begin{matrix}x=\dfrac{2}{3}\cdot6=4\left(tm\right)\\y=-14:\dfrac{2}{3}=-21\left(tm\right)\\z=\dfrac{2}{3}\cdot60=40\left(tm\right)\end{matrix}\right.\)

thỏa mạn?

Mình ko bít làm nha bạn

(x-2)(2y+3)=26

=>\(\left(x-2\right)\left(2y+3\right)=1\cdot26=26\cdot1=\left(-1\right)\cdot\left(-26\right)=\left(-26\right)\cdot\left(-1\right)=2\cdot13=13\cdot2=\left(-2\right)\cdot\left(-13\right)=\left(-13\right)\cdot\left(-2\right)\)

=>\(\left(x-2;2y+3\right)\in\left\{\left(1;26\right);\left(26;1\right);\left(-1;-26\right);\left(-26;-1\right);\left(2;13\right);\left(13;2\right);\left(-2;-13\right);\left(-13;-2\right)\right\}\)

=>\(\left(x;y\right)\in\left\{\left(3;\dfrac{23}{2}\right);\left(28;-1\right);\left(1;-\dfrac{29}{2}\right);\left(-24;-2\right);\left(4;5\right);\left(15;-\dfrac{1}{2}\right);\left(0;-8\right);\left(-11;-\dfrac{5}{2}\right)\right\}\)

Ta có (2x-1)(y+1) = 2 

⇒ 2x-1 ; y+1 ϵ Ư(2)

Ta có bảng sau 

Vì (x;y)ϵ Z nên 

⇒ (x;y) ϵ (0;-3) ; (1;1) 

Vậy (x;y) ϵ (0;-3); (1;1) 

Chúc bạn học giỏi 

X=1 , y =1

--> Tử số là $2n + 1$ và mẫu số là $3n + 2$. 
--> Nếu tử số và mẫu số có ước chung, thì ước chung đó phải là một số tự nhiên lớn hơn 1 và là ước của cả $2n + 1$ và $3n + 2$. 
--> Tuy nhiên, nếu lấy $2n + 1$ trừ đi $3n + 2$, ta được $-n - 1$, tức là một số không phải là ước của $2n + 1$ hoặc $3n + 2$. 
--> Vì vậy, có thể kết luận rằng $2n + 1$ và $3n + 2$ không có ước chung nào ngoại trừ 1. 
=> Do đó, phân số $\frac{2n + 1}{3n + 2}$ đã được tối giản.

Đặt ƯCLN (2n+1;3n+2) = d ( dϵ N * )

Ta có :⇒ (2n+1) ⋮ d ⇒ 3(2n+1)⋮ d ⇒ (6n+3)⋮d 

             (3n+2) ⋮ d ⇒ 2(3n+2)⋮ d ⇒ (6n+4)⋮ d 

⇒ [(6n+4)-(6n+3)] ⋮ d 

⇒ [6n+4-6n-3]

⇒ 1⋮d

⇒ d =1 

⇒  ƯCLN (2n+1;3n+2) = 1 

Vậy PS 2n+1 /3n+2 là phân số tối giản 

Chúc bạn học tốt ♫

⇒ 1 ⋮ d 

$A = 4 + 4^2 + 4^3 + … + 4^{2024} + 4^{2025}$
$A= 4(1 + 4 + 4^2 + … + 4^{2023} + 4^{2024})$
$A = 4 \times \frac{4^{2025} - 1}{4 - 1} = \frac{4^{2026} - 4}{3}$
$A \equiv \frac{16 - 4}{3} \equiv 4$
=> Vậy, số dư của A khi chia cho 17 là 4.

1. a
2. an
3. a
4. The
5. a/The

1. the
2. an
3. a
4. The
5. a