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Tớ mới kb fb cậu đấy . hihi

Họ & tên : Đinh Bảo Châu Thi Tên nick HMF: orangery Tuổi: 13 Đăng kí tham gia topic lớp: 8 Điều mong muốn sẽ học được từ topic/ hoặc cần đc củng cố kiến thức phần: tất cả kiến thức lớp 8 Hứa sẽ hoạt động tích cực trong topic đăng kí. Nếu không sẽ chịu mọi hình thức phạt mà BTC đưa ra. ~>...

Isaac Newton, one of the __(1)__ scientists, was born __(2)__ December 25th, 1642 in a small village __(3)__ Wool Thorpe in England. His father was a poor __(4)__. When the boy was fourteen, his father died. Newton __(5)__ school and helped his mother on the farm. __(6)__ he was fond __(7)__...

Bài của em đây :))))))))) 1. Stephenson invented the first steam-engine. ---> The first steam-engine was invented by Stephenson. 2. Did Stephenson invent the first steam-engine? ---> Was the first steam-engine invented by Stephenson ? 3. A butcher does not make bread. ---> Bread isn't made by...

Đói bụng quá!!! Huhu

Câu 8 do lúc viết bị bỏ dở giữa chừng ( mới viết được check) xong ngồi vô viết tiếp luôn , quên thêm ed. Câu 9 thì mình không biết thật. Mà này bài của bạn must = had to . Có phải là must= have to QK ---> had to đúng k nhỉ

Giả sử $X$ là nam Ta có số thiệp có là $26 .3=78$ Gọi số bạn nữ xếp 2 con hạc là $x$ (x nhỏ ), xếp 5 con hạc là $18-x$ Theo đề bài ta có: $2x + 5(18-x) =78\\ \iff 2x - 5x + 90 =78\\ \iff -3x +90 =78 \\ \iff x =4$ Vì $x \in N* $ nên giả thuyết trên là đúng. Vậy $X$ là nam

I. Choose the word/ phrase (A, B, C or D) that best fits the space in each sentence. (2.5 pts) 1.- “May I go out for just a while?” - “___ ” A. It’s a nice day! B. That’s great! C. Go ahead! D. Yes, you could! 2. Tidal waves are the result of an abrupt shift in the...

In the year 122 AD, the Roman Emperor Hadrian(visit) visited his provinces in Britain. On his visit, the Roman soldiers(tell) told him that Pictish tribes from Britain's north(attack) had attacked them. ( Câu tường thuật nên lùi thì f k ạ ) So Hadrian(give) gave the order to build a protective...

321. . Coca cola by Louis Lassen? A. were/invented B. was/invented C. are/invent D. is/ invented 322. hello to everyone for me! A. tell B. talk C. say D. speak 323. I was late for the meeting because I an accident. A. had B. met C. made D. lost 324. We beauty competition last week . A...

waiting....

$\sqrt{x^2 -x + \dfrac{1}{4}} $Như này á ?

Đề câu a và c chắc có gì nhầm lẫn x,y nguyên ?? b) $ 2x+y+xy+10=0\\ \iff 2x+ 2 + y(x+1) = -8\\ \iff 2(x+1) +y(x+1) =-8\\ \iff (x+1)(y+2) =-8$ Các câu khác thì tương tự thôi á

$|x-2013| + | x-2014| + | y-2015| + |x-2016| =3$ Ta có : $ |x-2013| + |x-2016| = |x-2013| + |2016-x| \leq | x-2013 + 2016 -x| = 3\\ => |x-2013| + | x-2014| + | y-2015| + |x-2016| \leq 3 $ Dấu "=" xảy ra khi và chỉ khi : $\left\{\begin{matrix} (x-2013)(x-2016) >0\\ x-2014 =0 ; y-2015 =0...

Tính cách thường nhé :) $ a) (\dfrac{7}{4}. \dfrac{-4}{5}+ \dfrac{7}{2}. \dfrac{-1}{5}).50% -0,1 \\ =( \dfrac{-7}{5} + \dfrac{-7}{10}).50 % -0,1 \\ = \dfrac{-21}{10}. \dfrac{1}{2} -0,1\\ = \dfrac{-21}{20} - \dfrac{2}{20}\\ = \dfrac{-23}{20} $ $ b) ( 2\dfrac{1}{3}+ 3\dfrac{1}{2}) .0,2 +25 %\\...

$ \sqrt{3} + \sqrt{2} + \sqrt{3} - \sqrt {2} = \sqrt{3} + \sqrt{3} = 2\sqrt{3}$ Như đã biết thì : $a+a=2a$ Như vậy ta sẽ có : $\sqrt{3} + \sqrt{3} = 2\sqrt{3} $ Còn $2\sqrt{3} \neq \sqrt{6} $ nhé

301. Someone has ... my bag! A. stolen B. stole C. been stolen D. steal 302. A lot of children were ... of the lion’s roar. A. frightened B. destroyed...

Bài làm của e :v 1. They were interviewing her for the job. She ________________ for the job. a.was being interviewed b. was interviewed c. has been interviewed 2. Tom is writing the letter. The letter ________________ by Tom. a. was written b.is being written c.has been written 3. Everyone...

1. Last year, they.............22 million TV sets. A. were selling B. had sold C. has sold D. sold 2. At last the bus came.We..............for half an hour. A. waited B. was waiting C. have waited D. had been waiting 3. Daniel............the bus.It doesn’t run on Sundays. A. did not...

I will call you before I ________ over. A. come B. will come C. will be coming D. came 2. After she graduates, she ________ a job. A. got B. will get C. had got D. get 3. When I _________ him tomorrow, I will ask him. A. saw B. have seen C. will see D. see 4. As soon as it _________...