Bạn học lớp 5 à ,cùng khối với mình rồi ,kết bạn mình nha ! Còn về phần câu hỏi thì ............mình thua ,hỏng biết:d

đó sẽ là công việc tuyệt vời !

a: Thay x=25/16 vào A, ta được:

\(A=\left(\dfrac{5}{4}+1\right):\left(\dfrac{5}{4}-3\right)=\dfrac{9}{4}:\dfrac{-7}{4}=\dfrac{-9}{7}\)

b: \(B=\dfrac{2x-6\sqrt{x}+x+3\sqrt{x}-3x-3}{x-9}\)

\(=\dfrac{-3\sqrt{x}-3}{x-9}\)

42:7=6 nha Cao Đức Hiếu

Theo bảng chia 7 , bạn cứ dò thì sẽ biết

Thương 42 và 7 là :

42 : 7 = 6

Đáp số : 6

42:7=6

a. 

=> xOy+yOz=180'

=>2yOz+yOz=!80'

=>3yOz=180'

=>yOz=180':3

=>yOz=60'

b.

=>xOy'=yOz=60'(2 góc đối đỉnh)

c. 

Các cặp góc đối đỉnh trong hình là: xOy' và yOz, y'Oz và xOy

bài của mình thiếu 2 góc kề bù ỏ phần giải thích câu a bạn sửa lại giùm nha!

a, ta có : góc xoy + yoz = 180 độ ( 2 góc kề bù )

             \(\Rightarrow\)2yoz + yoz =180 độ

            \(\Rightarrow\)3 yoz = 180 độ

            \(\Rightarrow\)yoz    = 180 :3 =60 độ

b, ta có : góc xoy = 2 yoz \(\Rightarrow\)góc xoy = 2.60=120 độ

c, vì xoy và yoz là hai góc kề bù nên ox và oz là 2 tia đối nhau 

mà oy' và oy là 2 tia đối nhau 

nên các cặp góc đối đỉnh là: xoy và zoy' ; zoy và xoy'

I/ UNSCRAMBLE THE WORDS

II/ DRAW A LINE TO MATCH EACH QUESTION WITH THE ANSWER

III/ DRAW A LINE TO MACTH THE WORDS THAT GO TOGETHER

VI/ PUT THE QUESTIONS FOR THESE ANSWERS

1. .........................................................................................to the zoo ?

- You can get there by bus.

2. .........................................................................................Phu Quoc Island?

- You can get there by ship.

3. .........................................................................................the post office?

- Go along that street. It's by the lake.

4. .........................................................................................the nearest bookshop?

- Go straight ahead. It's on the right.

5. How .....................................................................................?

- A motorbike rider hit him.

6. .........................................................................................live?

- I live in a village.

7. What's .........................................................................................?

- I'ts beautiful. It's got a lot of parks.

8. ................................... New York ?

-It's modern. It's got a lot of buildings.

9. ..................................................................?

- There will be a robot. I'll use it to do the housework.

10. ...............................................................................?

- I have got a stomachache.

11. ..................................................................free time?

- I go camping and surf the Net.

12. . ..................................................................by plane?

- 2 hours.

13. .................................................................. tomorrow?

- It'll very cold and snowy.

14. . ..................................................................?

- There will be a fridge. I'll use it to keep food fresh.

15. . ..................................................................?

- You should use some eye drops

16. . ..................................................................?

- You may get a burn

17. ..................................................................?

- I Snow White. She's very beautiful.

18. . ..................................................................?

- It'll be a large house. It's got a yard.

19. ..................................................................the cat?

- Because it may scratch his face.

20. . ..................................................................your country?

It's often hot. There is much rain.

V. ANSWER THESE QUESTIONS

1. Where is your hometown? .......................................................................................

2. How often do you get there? ....................................................................................

3. How do you get there? ............................................................................................

4. How long does it take you to get there? ..................................................................

5. What is your hometown ?...................................................................................

6. Where did you go for Tet?.........................................................................................

7. Did you get to your hometown?...............................................................................

8. What are the seasons in the North of Vietnam? .......................................................

9. What are the seasons in the central and the south of Vietnam?..................................

10. What is summer in your country? ..................................................................

11. What is spring in your country?..................................................................

12. What is Autumn in your country?..................................................................

13. What is winter in your country?..................................................................

14. What do you do in your time?..............................................................................

15. What's your dream house be ?..........................................................................

xong , bn làm đi nhé!

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