help me1+1=?
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Công dụng của việc thêm trạng ngữ cho câu là:
- Xác định hoàn cảnh, điều kiện diễn ra sự việc nêu trong câu, góp phần làm cho nội dung của câu đầy đủ, chính xác.
- Nối kết các câu, các đoạn với nhau, góp phần làm cho đoạn văn, bài văn được mạch lạc.
1. Cristiano Ronaldo usually wears the number ....07.... shirt
2. Carrots and tomatoes are rich in ....vitamin.... A
3. Leo Messi is the capitain of ....Argentina.... national football team
4. I advise you to receive the lesson car ....carefully.... for the next exam
5. Seoul is the capital city of South ....Korea....
6. The program often on VTV3 is ...."Wonderful Weekend"....
(mik tự nghĩ v thui)
1. There are some trees in the fields, but now there aren't any.
- There used to be some trees in the fields.
2. People will hold the elephant race festival at Don village next week.
- The elephant race festival will be held at Don village next week.
3. Watching a horror film made us feel terrified.
- It is terrifying to watch a horror film.
4. That is not his invention.
- That invention is not his.
\(1)\)\(-\dfrac{10}{11}.\dfrac{8}{9}+\dfrac{7}{18}.\dfrac{10}{11}\)
\(=\dfrac{10}{11}\left(-\dfrac{8}{9}+\dfrac{7}{18}\right)\)
\(=\dfrac{10}{11}\left(\dfrac{-16}{18}+\dfrac{7}{18}\right)\)
\(=\dfrac{10}{11}.\left(-\dfrac{1}{2}\right)=-\dfrac{5}{11}\)
\(2)\)\(\dfrac{12}{25}.\dfrac{23}{7}-\dfrac{12}{7}.\dfrac{13}{25}\)
\(=\dfrac{12}{7}.\dfrac{23}{25}-\dfrac{12}{7}.\dfrac{13}{25}\)
\(=\dfrac{12}{7}.\left(\dfrac{23}{25}-\dfrac{13}{25}\right)\)
\(=\dfrac{12}{7}.\dfrac{2}{5}=\dfrac{24}{35}\)
\(3)\)\(\dfrac{3}{7}.\dfrac{16}{15}-\dfrac{2}{15}.\dfrac{-3}{7}\)
\(=\dfrac{3}{7}.\dfrac{16}{15}-\dfrac{3}{7}.\dfrac{-2}{15}\)
\(=\dfrac{3}{7}.\left(\dfrac{16}{15}+\dfrac{2}{15}\right)\)
\(=\dfrac{3}{7}.\dfrac{18}{15}=\dfrac{18}{35}\)
\(4)\)\(-\dfrac{4}{13}.\dfrac{5}{17}+\dfrac{-12}{13}.\dfrac{4}{17}\)
\(=-\dfrac{4}{13}.\dfrac{5}{17}+\dfrac{-4}{13}.\dfrac{12}{17}\)
\(=-\dfrac{4}{13}.\left(\dfrac{5}{17}+\dfrac{12}{17}\right)\)
\(=-\dfrac{4}{13}.\dfrac{17}{17}=-\dfrac{4}{13}\)
`#040911`
`1)`
`-10/11 * 8/9 + 7/18 . 10/11`
`= 10/11 * (-8/9 + 7/18)`
`= 10/11 * (-1/2)`
`= -5/11`
`2)`
`12/25 * 23/7 - 12/7 *13/25`
`= 12/7 * 23/25 - 12/7 * 13/25`
`= 12/7 * (23/25 - 13/25)`
`= 12/7 * 2/5`
`= 24/35`
`3)`
`3/7 * 16/15 - 2/15 * (-3)/7`
`= 3/7 * (16/15 + 2/15)`
`= 3/7 * 6/5`
`= 18/35`
`4)`
`-4/13 * 5/17 + (-12)/13 * 4/17`
`= -4/17 * 5/13 + (-12)/13 * 4/17`
`= 4/17 * (-5/13 - 12/13)`
`= 4/17 * (-17)/13`
`= -4/13`
c, Xét tm giác DIC VS tam giác DAB ta co :
CDI=DBA(SLT)
CID=ADB(SLT)
=> 2 TAM GIÁC ĐỒNG DẠNG
=> \(\dfrac{DI}{DB}\)=\(\dfrac{DC}{AB}\)
kéo dài MP cắt AD tại H
=> \(\dfrac{CP}{CB}\)=\(\dfrac{DC}{AB}\)( CÁI NÀY E TỰ CM , LỚP 8 HK OY)
=> \(\dfrac{DI}{DB}\)=\(\dfrac{CP}{CB}\)
=> IP// DC
=> M,I,P THẲNG HÀNG
=>DPCM.....
TL
2
TK cho m
HT
bằng 2 nha em :D