ghê

OH,ghê dữ,nhưng tui ko cần nha

1 watching

2 doing

3 sleeping

4 working

5 studying

6 talking

7 going

8 eating

9 telling

10 having

11 spending

12 taking

13 lending

14 waiting

15 doing

 cảm ơn bn nha

3/4 ha = 300/4 dam² = 75 dam²

75

hơ are you doing

1couldn't speak

2. will be able to build

3. can pass

4. can play

5. couldn't swim

6. can drive

7. will be able to help

8. won't be able to do

9. couldn't text

10. could play

Xin chào

Hello:Xin chào

đúng

bn đó

Bài 7:

\(\left(x-\frac{4}{11}\right)^3=343\)

=>\(x-\frac{4}{11}=7\)

=>\(x=7+\frac{4}{11}=\frac{77}{11}+\frac{4}{11}=\frac{81}{11}\)

Bài 6:

a: \(\left(\frac23\right)^{n}=\frac{8}{27}\)

=>\(\left(\frac23\right)^{n}=\left(\frac23\right)^3\)

=>n=3

b: \(3^{n+1}=9^2\)

=>\(3^{n+1}=3^4\)

=>n+1=4

=>n=3

Bài 4:

a: \(\left|x\right|=\frac{10}{13}\)

=>\(\left[\begin{array}{l}x=\frac{10}{13}\\ x=-\frac{10}{13}\end{array}\right.\)

b: \(\left|x-\frac56\right|=\frac12\)

=>\(\left[\begin{array}{l}x-\frac56=\frac12\\ x-\frac56=-\frac12\end{array}\right.\Rightarrow\left[\begin{array}{l}x=\frac56+\frac12=\frac56+\frac36=\frac86\\ x=\frac56-\frac12=\frac13\end{array}\right.\)

Z thì pk cố gắng ôn bài vs hk bài tốt thui! Chúc bn thi tốt~

cảm ơn bn nhiều