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write an essay about a time when you helped someone or some one help you

+When it happen?

+What were you doing?

+What was happening in the bakeground (the weather,people,etc)?

+Why did you help them, or why did they help you?

+How did yo feel?

(write in past simple and past continue )

Giải phương trình:

\(9x^2-5x=\left(2-x\right).\sqrt{3x^2-8x+3}\)

Tính

a)\(\frac{\sqrt{15}-\sqrt{5}}{\sqrt{3}-1}-\frac{5-2\sqrt{5}}{2\sqrt{5}-4}\)

b)\(\frac{2\sqrt{8}-\sqrt{12}}{\sqrt{3}-1}-\frac{\sqrt{5}+\sqrt{27}}{\sqrt{30}-\sqrt{2}}\)

c)\(\frac{2}{\sqrt{3}-1}-\frac{2}{\sqrt{3}+1}\)

Nếu tạo 2 acc fb(mk gọi là acc 1 và 1 đi ha) thì thông báo của acc 2 có hiện lên khi đang ở acc 1không?

Tính giá trị của tổng

\(\sqrt{1+\frac{1}{1^2}+\frac{1}{2^2}}+\sqrt{1+\frac{1}{2^2}+\frac{1}{3^2}}+...+\sqrt{1+\frac{1}{99^2}+\frac{1}{100^2}}\)

Rút gọn

P =

Rewrite the sentences without changing their meaning. Use the words in brackets.

3. Sebastien is a French, but he plays Vietnamese folk games well. (although)

Although …

4. He has to join the festival in order to play Vietnamese folk games. (so)

He …

5. Although the weather was terrible we had a good time. (spite)

We …

6. So that Susan would be fit for the skiing, she went to the gym three times a week. (order)

Susan …

7. My family went to Hương Pagoda Festival two months ago. (since)

It …

8. You won’t get in to see the show if you don’t have reserved seats. (unless)

You …

Tan69°–cot21°+cot27°/tan63°

Tính giá trị B= \(\sqrt{1+\frac{1}{1^2}+\frac{1}{2^2}}+\sqrt{1+\frac{1}{2^2}+\frac{1}{3^2}}+...+\sqrt{1+\frac{1}{99^2}+\frac{1}{100^2}}\)

1.The amount of lapsed time between the thunder and lightning can be used to determine ____

a.how the thunder and lightening are far away

b.how far away are the thunder and lightening

c.the thunder and lightening are how far away

d.how far away the thunder and lightening are

2.A tapeworn,which can often reach ____ in length, is a parasite that attaches itself to the intestinal wall of its host

a.fifteen feet or more

b.or fifteen feet as

c.or fifteen feet more

d.at least the fifteen feet

3.Pamela is rather too fat;she ___ sisty-six kilos

a.holds

b.has

c.weighs

d.makes

4.Is that the woman ____ is going out with Alicia

a.the son of whom

b.whose son

c.that's son

d.the son of who

5.The crime ___ seems to be going up and up

a.percentage

b.wave

c.figures

d.rate

6.The baby can't even walk,___ run

a.little more

b.more less

c.much less

d.much more

7.If you've got time for a cup of tea, I'll ___ one for you

a.make

b.mix

c.boil

d.give

Sin32°–cos58°+tan32°.tan58°

1. She was late for the interview because she was ________ in traffic for over an hour.

A. stuck B. busy C. slow D. lost

Reported Speech

1. He said, " If you have time what will you do? "
->

2. She said, " If you want to lose weight, you must eat less bread. "
->

3. He said, " If I had a map, I would lend it to you. "
->

4. He said, " If I had known that you were coming, I would have met you at the airport. "
->

5. He wondered, " If the baby is the girl what will they call her? "
->

6. He said, " If I lived near my office, I'd be in time for work. "
->

7. She said, " If you feel ill, why don't you go to bed? "
->

Đưa các biểu thức sau về hằng đẳng thức bằng cách tách hoặc thêm bớt số hạng cho phù hợp

a) A= x² - 2x +5

b) B= 4x² + 4x - 5

c) C= x² - 8x + 17

d) D= 9x² + 6x - 2

1.BÀI TẬP VỀ PHƯƠNG PHÁP TÁCH VÀ THÊM BỚT CÁC HẠNG TỬ

a) \(3x^2-8x+4\)

b) \(3x^2-16x+5\)

c) \(2x^2-5x-12\)

d) \(8x^2+30x+7\)

e) \(6x^2-7x-20\)