1+1+1+1+1+1+1+1+1=9

ai kích mk mk k lại cho

A = { x thuộc N / x < hoặc = 10 }   -> ghi bằng kí hiệu .

1. She's an actress

2. She is at least thirty-five.

3.She will have to take part in a new play soon

4.She had to wear short sokds and a bright, orange - colored dress.

5. No she doesn't

cũng thank bạn nha Trịnh Tiến Đức nhưng chỉ cần xét 1 vế rồi suy ra cho nhanh chư cách bạn hơi dai nhưng m` vẫn hiểu cam ơn nha ~~~

Ta có :

\(c=\frac{bd}{b-d}\Leftrightarrow bc-cd=bd\)

\(\Rightarrow bc=d\left(b+c\right)\)

\(\Rightarrow bc=ad\)

\(\Leftrightarrow\frac{a}{b}=\frac{c}{d}\)

Vậy ...

1. have to

2.swimming

3.don't think/go

4.telling

bằng 34 nha

\(x+\frac{1}{2}=4\)

\(x=4-\frac{1}{2}\)

\(x=\frac{8}{2}-\frac{1}{2}\)

\(X=\frac{7}{2}\)

\(2\times2=4\)

\(2\times3=6\)

\(2\times4=8\)

\(2\times5=10\)

\(2\times6=12\)

\(2\times7=14\)

\(2\times8=16\)

\(2\times9=18\)

\(2\times10=20\)