Bài 12:

PT giao điểm tại hoành độ 1 là \(ax-3=x+5\)

Thay \(x=1\Leftrightarrow a-3=6\Leftrightarrow a=9\)

Bài 13:

\(\Leftrightarrow A\left(0;-6\right)\inđths\\ \Leftrightarrow x=0;y=-6\\ \Leftrightarrow k=-6\)

12. Hai đồ thị cắt nhau: ax - 3 = x + 5 (1)

Mà đề bài cho x=1 thay vào (1)  => a = 9.

13. Hoành độ giao điểm y = 3x là: -6 = 3x => x=-2

Mà x = -2 và y = -6 thuộc vào đường thẳng chứa k nên thay vào ta có: 

-6 = ( k-2 ). -2 + k => k= 10

= 23,18 - 3,18 - 4,17 - 5,83 + 51,54 + 8,46

= 20 - 10 + 60

= 70

= 23,18 - 3,18 - 4,17 - 5,83 + 51,54 + 8,46

= 20 - 10 + 60

= 70

= 23,18 - 3,18 - 4,17 - 5,83 + 51,54 + 8,46

= 20 - 10 + 60

= 70

1 The man for whom she worked for used to be an athlete

2 The lawyer whom they called lived nearby

3 My brother, to whom I sent an email, lives in Australia

4 The waitress whom the customer liked was very friendly

5 The computer which we broke belonged to my father

6 The glass which I dropped was new

7 The books which she loves have happy ending

8 The city where they live is in the north of England

9 The book which I gave you had many pictures

10 The book which I am reading at the moment is very interesting

11 The town where you live is very old

12 The sweets which I bought yesterday are delicious

13 The football match which my friend play in was very exciting

14 The letter which I posted three days ago hasn't arrived yet

15 The house which he lives in is not very big

16 Do you like the radio where they are playing song?

17 Did you see the beautiful shirt which Jane wore yesterday?

18 I don't like the boy whom Sue is going out with

Em ơi đăng tách bài ra mỗi lượt đăng 1-2 bài thôi nha!

sory giờ định

trả ời mà ko

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bt mà ko trả lời

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tha thứ bn

lúc đó thế nào

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a) B, E, A thẳng hàng

D, E, G thẳng hàng

B, D, C thẳng hàng

b) B, D, E không thẳng hàng

E, A, G không thẳng hàng

B, C, A không thẳng hàng

B, E, G không thẳng hàng

a) B,D,E ; D,E,G ; B,D,C

B) G,E,A ; B,E,D ; G,A,C ; B,A,C