bạn cho mình xin hình vẽ nha bạn

nhưng mà nhìn  các đáp án mình sẽ chọn ngay C rồi, bởi tia Ax và Ox có chung gốc đâu nên ko thể trùng nhau được

   A = \(\dfrac{3n+2}{7n+1}\) (n \(\in\) N)

Gọi ƯCLN(3n + 2; 7n + 1) = d

Ta có:  \(\left\{{}\begin{matrix}\left(3n+2\right).7⋮d\\\left(7n+1\right).3⋮d\end{matrix}\right.\)

            \(\left\{{}\begin{matrix}21n+14⋮d\\21n+3⋮d\end{matrix}\right.\)

            \(\left\{{}\begin{matrix}21n+14⋮d\\21n+14-21n-3⋮d\end{matrix}\right.\)

              \(\left\{{}\begin{matrix}21n+14⋮d\\11⋮d\end{matrix}\right.\)

d \(\in\) Ư(11) = {1; 11}

      \(\left\{{}\begin{matrix}3n+2⋮11\\7n+1⋮11\end{matrix}\right.\)

        \(\left\{{}\begin{matrix}3n+2⋮11\\2.\left(3n+2\right)+n-3⋮11\end{matrix}\right.\)

          n - 3 ⋮ 11

A = \(\dfrac{3n+2}{7n+1}\) tối giản khi và chỉ khi n - 3 \(\ne\)  11k (k \(\in\) N)

   n \(\ne\) 11k + 3 (k \(\in\) N)

\(x-\dfrac{10}{3}=\dfrac{7}{15}\cdot\dfrac{3}{5}\\ x-\dfrac{10}{3}=\dfrac{7}{25}\\ x=\dfrac{7}{25}+\dfrac{10}{3}\\ x=\dfrac{271}{75}\)

Vậy \(x=\dfrac{271}{75}\)

x-10/3=7/25

x=7/25+10/3

x=271/75 nhớ tick nha

Em có thể tham khảo nhé: 

My favourite sport is basketball. It's a game that involves two teams, each with five players. I play basketball with my friends almost every day after school. We gather at the local court and spend hours dribbling, shooting, and passing the ball. Basketball is not just about scoring points; it's also about teamwork, strategy, and staying active. I enjoy the fast pace of the game and the thrill of making a great play or sinking a shot. Playing basketball is not only fun but also helps me stay fit and healthy.

1 A

2 C

3 D

4 B

\(x-\dfrac{1}{24}=\dfrac{-1}{8}+\dfrac{5}{6}\)

=>\(x-\dfrac{1}{24}=\dfrac{-3}{24}+\dfrac{20}{24}=\dfrac{17}{24}\)

=>\(x=\dfrac{17}{24}+\dfrac{1}{24}=\dfrac{18}{24}=\dfrac{3}{4}\)

   3/5 + (-4/9) - (-2/5)

= 7/45 - (-2/5)

= 5/9.

\(\dfrac{1}{2}\cdot\dfrac{8}{13}+\dfrac{8}{13}\cdot\dfrac{3}{2}+\dfrac{8}{13}\cdot\left(-2\right)\)

\(=\dfrac{8}{13}\left(\dfrac{1}{2}+\dfrac{3}{2}-2\right)\)

\(=\dfrac{8}{13}\cdot0=0\)

  1/2 . 8/13 + 8/13 . 3/2 + 8/13 . (-2)

= 8/13 . (1/2 + 3/2 - 2)

= 8/13 . 0

= 0.

Số tiền ban đầu phải trả cho 5 quyển vở là:

\(12000\cdot5=60000\left(đồng\right)\)

Số tiềnban đầu  phải trả cho 4 cây bút bi là:

\(5000\cdot4=20000\left(đồng\right)\)

Tổng số tiền phải trả là:

\(\left(60000+20000\right)\left(1-10\%\right)=80000\cdot0,9=72000\left(đồng\right)\)

câu b"?