Happy birthday !

vì góc x và góc A là hai góc trong cung phía nên 

góc x=180 độ -70 độ=110 độ

vì góc x và góc y là hai góc sole trong nên 

góc x= góc y=110 độ

1. Why/not/he/go/movie theater/last night?

-> Why didn't he go to the movie theater last night?

2. We/enjoy/tell/jokes

-> We enjoy telling jokes.

3. I/going/see/John/tonight

-> I am going to see John tonight.

4. She/often/have/short holiday/Christmas

-> She often has short holiday at Christmas.

5. My Dad/work/company/since 2000

-> My dad has worked in a company since 2000.

6. Those students/not old/enough/drive/motorbikes

-> Those students are not old enough to drive motobikes.

7. Minh/like/play/chess/and/watch/television

-> Minh likes playing chess and watching television.

8. Nam/live/here/for/ten years

-> Nam has lived here for ten years.

Các bạn cùng lớp của bạn sẽ chuẩn bị làm gì?

there are (any) trees in my garden,buy there aren't any flowers

F. sửa thành some

Tên: Trần Thanh Huyền Anh

Lớp 8

\(A=\frac{1}{500}+\frac{3}{500}+\frac{5}{500}+...+\frac{97}{500}+\frac{99}{500}\)

\(A=\frac{1+3+5+...+97+99}{500}\)

Số các số hạng của tử là:

(99-1):2+1=50 số

\(=>A=\frac{\left(1+99\right).50:2}{500}\)

\(=>A=\frac{2500}{500}=5\)

uk

a)\(\left\{\begin{matrix}x+3\ne0\\x-3\ne0\\x+2\ne0\end{matrix}\right.\)=> \(\left\{\begin{matrix}x\ne-3\\x\ne3\\x\ne-2\end{matrix}\right.\)

Vậy, điều kiện xác định của A là x khác -3; x khác 3 ; x khác -2.

* Choose the ansewer for each sentence:

1/she enjoys ...............jokes(tell/tells/told/telling)

2/he prefers watching to........... soccer(play/plays/playing/played)

3/he fail the exam...........he was layzy(if/because/why/when)

4/the earth........around the sun(go /goes/will go/has gone)

5/put all dangerous objects out.........the achilderen's reach(of/up/off/to)