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1 D

2 B

3 D

4 A

5 D

6 D

7 D

8 A

9 D

Bài 2

1 A

2 B

3 D

4 D

5 C

6 C

7 B

8 A

D - B - A - A - D - D - C - A - D 
A - B - B - D - C - B - B - C 

5 B

6 B

7 D

8 B

9 C

10 A

6. B

7. A

8. B

9. A

10.A/C ( mk ko rõ )

1 How many eggs are we having now

2 The picture in our room is not different from the picture in her room

3 Has she ever read Kieu Story?

4 Nam and Ba have English three times a week

19 Because Nam did not work hard, he didn't get good marks

20 The photograph is not as big as the painting

Áp dụng tính chất của dãy tỉ số bằng nhau, ta được:

\(\dfrac{a}{\dfrac{1}{3}}=\dfrac{b}{\dfrac{1}{5}}=\dfrac{c}{\dfrac{1}{6}}=\dfrac{a-c}{\dfrac{1}{3}-\dfrac{1}{6}}=\dfrac{10}{\dfrac{1}{6}}=60\)

Do đó: a=20; b=12; c=10

a: Xét ΔBAD và ΔBED có 

BA=BE

\(\widehat{ABD}=\widehat{EBD}\)

BD chung

Do đó: ΔBAD=ΔBED

\(y:6+6666=7209\)

\(y=\left(7209-6666\right)6=3258\)

Tìm Y cũng như Tìm X 

Y/6 đúng không bạn

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