có đúng hay không khi nới rằng anh,pháp ,mỹ phải chịu 1 phần trách nhiệm khi để sảy ra chiến tranh thế giới thứ 1

cho hình thoi abcd có canh ab dài 10cm;ac=12cm kẻ ah vuông góc bc.

a,tính diện tích hình thoi

b,tính ah

b,gọi i là trung điểm cd,e là điểm đối xứng a qua i. chứng minh rằng bd vuông góc de và tính diện tích tam giác bde

giúp mk vs mk đg cần gấp

a,(x+3)^2+(x-2).(x+2)-2(x-1)^2=7

b,(x+2)^2-(x-2)(x+2)=0

c,(3x-2)^2-(2x-1)^2=0

d,x^2-4x+3=0

cho tam giác abc có ab nhỏ hơn ac đường cso bd và ce. so sánh bd và ci

I had a lot more responsibility in my …………………..job. IOR VUE P S
2. Why not open one of our new Supersaver bank…………. ? C S N O A U C T
3. It's always been my ……………. to work in advertising. B T MOI I A N
12

4. Frank left university and got a job in the computer ……………… DY T U R SIN
5. The family lived in . ………………after Mr Bucket lost his job. TOY V EP R
6. His parents left him a lot of money and now Neil is extremely ........ A E H Y T W
7. You usually need a degree and some training to join the teaching …………… .
ORIOFSPNSE
8. All members of…………….here get three weeks holiday a year. A T F S F

a2 + b2 + c2-ab-bc-ca = 0, hãy chứng minh rằng a = b = c.

chứng minh các biểu thức sau luôn có giá trị âm với mọi giá trị của biến

a)E=12x-4x^2-11 b)F=x-x^2-1

2.(3x-2) mũ 2 -3.(2x+5)mũ 2-6.(x-1).(x+1)

2.(3x-2) mũ 2 -3.(2x+5)mũ 2-6.(x-1).(x+1)

a. Are the bold italic nouns in the sentences countable or uncountable? Write C or U next to them

1. Are these oranges for you? Yes, I love eating fruit.

2. Where can I put my luggage? - Leave it on the shelf here.

3. My hair is getting very long. I need to get it cut.

4. There is a lot of information you can get from him.

5. Malcolm is looking for a new job. He's been out of work for four months.

6. He never has enough money at the end of the month.

7. I am going to buy a lot of new furniture for my new house.

8. Oh no! There is a hair in my tomato soup!

9. I've had too many cups of coffee today. I'll have some fruit juice now.

10. The day was wet and dark in the morning but later we had lovely weather.

11. Careful! There's broken glass on the floor. I've just dropped my glass by accident.

12. He caught a big fish at the lake. His wife will cook it with vegetables.

13. I was in a hurry this morning. I didn't have time for breakfast.

14. I had some interesting experiences while I was in Africa.

15. If you want to know the news you can read the paper.