10. I wasn't able to accept his invitation.

11. I have never read a more interesting novel than this one. / I have never read such an interesting novel.

12. My mother can cook better than I can.

13. I was made to do it by my parents.

10. I wasn't able to accept his invitation.

11. I have never read a more interesting novel than this one / I have never read such an interesting novel.

12. My mother can cook better than I can.

13. I was made to do it by my parents.

Mình cần gấp trước 21h tối nay ạ!

help me!!!

Bài 1:

Bài 2:

Đây là gợi ý:

a: Xét tứ giác ADHE có 

\(\widehat{ADH}=\widehat{AEH}=\widehat{EAD}=90^0\)

Do đó: ADHE là hình chữ nhật

Suy ra: AH=DE

1 D
2 D
3 B
4 C
5 B
6 A
7 C
8 B
9 C
10 A
11B
12 C
13 D
14 C
15 B

44 phút nữa mk giúp (mà mk có bíc j đâu :>)

hao han

Đg thi hok giúp đc

Bài 3b, 3a bạn chụp mờ mình ko thấy 

\(E=\dfrac{2}{5}x^4z^3y-x^4z^3y+2x^4z^3y=\dfrac{7}{5}x^4z^3y\)

Thay x = 2 ; y = 1/2 ; z = -1 ta được :

\(\dfrac{7}{4}.16.\left(-1\right).\dfrac{1}{2}=-\dfrac{28}{2}=-14\)

9:

3d; 4a; 2b; 1c