Bn ấy chưa hok về căn bậc hai đou cj ạ

\(x\in\left\{18;24;36\right\}\)

Hok tốt 

Giải

\(x\in\left\{1;2;11\right\}\)

Hok tốt 

Giải:

1. am looking

2. know

3. are doing

4. plays

5. am listening

6. watches

7. are studying

8. doesn't do

9. is asking

10. aren't working

11. use

12. Is Jane watching

13. doesn't go

14. is eating

15. Do you study

16. am not lostening; am playing

17. is raining; rains

18. are reading

Hok tốt 

Bn ơi, đề đou??? 

\(\dfrac{9}{11}.\dfrac{121}{35}.\dfrac{7}{9}=\dfrac{9.121.7}{11.35.9}=\dfrac{11}{5}\)

Dấu . là dấu nhân nha

Hok tốt 

Giải:

\(\dfrac{3}{5}+\dfrac{4}{9}=\dfrac{27}{45}+\dfrac{20}{45}=\dfrac{27+20}{45}=\dfrac{47}{45}\)

Hok tốt 

\(\dfrac{7}{45}\) quãng đường

Hok tốt 

Giải:

\(\dfrac{3}{8}:\dfrac{2}{4}=\dfrac{3}{8}.2=\dfrac{6}{8}=\dfrac{3}{4}\)

Hok tốt 

106 tạ e nhé

Chúc e hok tốt