GIÚP MÌNH 16 CÂU WORD FORM NÀY VỚI Ạ!!
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10 tháng 5 2021 lúc 20:36
GIÚP MÌNH MẤY PHẦN WORD FORM NÀY VỚI Ạ!!
Thầy cô giúp em giải bài word form này với ạ, e cảm ơn 
1 inconvenience
2 voluntarily
3 industrial
4 break-taking
5 intentively
6 breakdown
7 preferable
8 economical
9 acceleration
10 misunderstanding
11 inhabitant
12 kidnapper
13 foggy
14 shouthern
15 decision
16 entertainment
17 information
18 pronounciation
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Giúp mình câu này với ạ. Mình cảm ơn !
\(x-16=5-2x\)
x - 16 =3
x = 16 + 3
x = 19
Ta có x-16=5-2*x
x+2*x=5+16
x*(1+2)=21
x*3=21
x=21/3
x=7
Ta có x-16=5-2x
x+2x=5+16
x*(1+2)=21
x*3=21
x=7
Dạ Anh/Chị trong group giải giúp em câu này với ạ. Em cám ơn nhiều. I. Use the correct form of the word given in each sentence:1. Like beverage cans and bottles, this _______________ can be recycled. (produce)2. The next stage in the _______________ of television is interactive TV. (develop)3. You’d better put an _______________ in the local paper to sell your house. (advertise)4. I enjoy the constant _______________ with students from other classes. (interact)5. ...
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Dạ Anh/Chị trong group giải giúp em câu này với ạ. Em cám ơn nhiều.
I. Use the correct form of the word given in each sentence:
1. Like beverage cans and bottles, this _______________ can be recycled. (produce)
2. The next stage in the _______________ of television is interactive TV. (develop)
3. You’d better put an _______________ in the local paper to sell your house. (advertise)
4. I enjoy the constant _______________ with students from other classes. (interact)
5. The Internet is a very useful means of _______________. (communicate)
6. There’s a lot of crime and _______________ on TV today. (violent)
7. Her novel is known to everyone. It is _______________ read. (wide)
8. Because Hoa lives in a remote area, the Internet isn’t _______________ for her. (availability)
9. My brother would like to be a _______________. (journal)
10. He was a town_______________ who had to stand in markets and public spaces, shouting the news to the residents of the town. (cry)
11. I find this newspaper _______________. I can get much useful knowledge from it. (inform)
12. Computers are becoming _______________ popular. They make everything faster and more reliable. (increase)
13. Watching TV has become one of the most popular forms of _______________. (entertain)
14. Nowadays, the Internet is _______________ used. We can see many products. (commerce)
15. _______________ is a film or radio or television program giving facts about something.(document)
16. The show brought _______________ to millions of viewers. (enjoy)
17. Although this laptop was a bit _______________, I still bought it yesterday. (cost)
18. There is a _______________ of local and international programs on TV. (vary)
19. I’m looking forward to seeing your _______________. (respond)
20. By learning English, we can understand more about the _______________ countries in the world. (develop)
21. It’s _______________to try to talk to her because she never listens. (use)
22. They walked _______________ to the room. (purpose)
23. Alexander G. Bell was one of the greatest _______________. (invent)
24. These mountain villages are completely _______________ in winter. (access)
25. I found the talk both informative and _______________. (entertain)
26. The Internet is becoming a _______________ tool for teachers. (use)
27. For most people a good _______________ helps them get a better job. (educate)
28. He was good at making up funny stories. He has an_______________ mind. (invent)
II. Rearrange the groups of words in a correct order to make complete sentences:
1. part of our everyday life / has increasingly / The internet / developed and become /. /
_______________________________________________________________
2. of using the computer, / can they? / can deny the advantages / No one/
_______________________________________________________________
3. uses the Internet / every day, / Your father / doesn’t he?
_______________________________________________________________
4. are used / with TV / Remote controls / to interact/./
_______________________________________________________________
5. news as / Town criers / they were walking / shouted the latest/./
__________________________________________________________________
6. is a very fast / The Internet / for me to get information/ and convenient way/./
__________________________________________________________________
7. most of the time / which website is useful / wandering because / I don’t know / I spend/. /
_______________________________________________________________
8. TV viewers / can watch a variety / on different channels / of local and international programs /./
_______________________________________________________________
9. My father / sports but / likes watching / my mother doesn’t/./
_______________________________________________________________
10. Most people / and magazines / love reading / newspapers/./
_______________________________________________________________
12/16<.../22<13/16
Mn giải hộ mình câu này với ạ, mình cảm ơn nhiều.
\(\dfrac{12}{16}=\dfrac{132}{176}\\ \dfrac{13}{16}=\dfrac{143}{176}\\ Ta.có:\dfrac{16}{22}< \dfrac{132}{176}< \dfrac{17}{22}< \dfrac{143}{176}< \dfrac{18}{22}\\ Vậy:Chọn.số.17\)
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Giúp mình câu này với ạ, đc thì giải chi tiết giúp mình luôn ạ, đbt là câu b, mình hơi chậm hiểu 
Nãy ghi nhầm =="
a)Hđ gđ là nghiệm pt
`x^2=2x+2m+1`
`<=>x^2-2x-2m-1=0`
Thay `m=1` vào pt ta có:
`x^2-2x-2-1=0`
`<=>x^2-2x-3=0`
`a-b+c=0`
`=>x_1=-1,x_2=3`
`=>y_1=1,y_2=9`
`=>(-1,1),(3,9)`
Vậy tọa độ gđ (d) và (P) là `(-1,1)` và `(3,9)`
b)
Hđ gđ là nghiệm pt
`x^2=2x+2m+1`
`<=>x^2-2x-2m-1=0`
PT có 2 nghiệm pb
`<=>Delta'>0`
`<=>1+2m+1>0`
`<=>2m> -2`
`<=>m> 01`
Áp dụng hệ thức vi-ét:`x_1+x_2=2,x_1.x_2=-2m-1`
Theo `(P):y=x^2=>y_1=x_1^2,y_2=x_2^2`
`=>x_1^2+x_2^2=14`
`<=>(x_1+x_2)^2-2x_1.x_2=14`
`<=>4-2(-2m-1)=14`
`<=>4+2(2m+1)=14`
`<=>2(2m+1)=10`
`<=>2m+1=5`
`<=>2m=4`
`<=>m=2(tm)`
Vậy `m=2` thì ....
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mọi người ơi giúp mình câu này với ạ, lời giải chi tiết càng tốt ạ, mình khá rối với câu này -.- cảm ơn mọi người nhiều
\(y'=\dfrac{\left(-2x+2\right)\left(x-3\right)-\left(-x^2+2x+c\right)}{\left(x-3\right)^2}=\dfrac{-x^2+6x-6-c}{\left(x-3\right)^2}\)
\(\Rightarrow\) Cực đại và cực tiểu của hàm là nghiệm của: \(-x^2+6x-6-c=0\) (1)
\(\Delta'=9-\left(6+c\right)>0\Rightarrow c< 3\)
Gọi \(x_1;x_2\) là 2 nghiệm của (1) \(\Rightarrow\left\{{}\begin{matrix}-x_1^2+6x_1-6=c\\-x_2^2+6x_2-6=c\end{matrix}\right.\)
\(\Rightarrow m-M=\dfrac{-x_1^2+2x_1+c}{x_1-3}-\dfrac{-x_2^2+2x_2+c}{x_2-3}=4\)
\(\Leftrightarrow\dfrac{-2x_1^2+8x_1-6}{x_1-3}-\dfrac{-2x_2^2+8x_2-6}{x_2-3}=4\)
\(\Leftrightarrow2\left(1-x_1\right)-2\left(1-x_2\right)=4\)
\(\Leftrightarrow x_2-x_1=2\)
Kết hợp với Viet: \(\left\{{}\begin{matrix}x_2-x_1=2\\x_1+x_2=6\end{matrix}\right.\) \(\Rightarrow\left\{{}\begin{matrix}x_1=2\\x_2=4\end{matrix}\right.\)
\(\Rightarrow c=2\)
Có 1 giá trị nguyên
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NT
16 tháng 12 2021 lúc 14:45
Giúp mình câu này với ạ, mình đang cần gấp ạ
a) Cl2 + 2NaOH --> NaClO + NaCl + H2O
Chất oxh: Cl2, chất khử: Cl2
| Sự oxh | Cl0 -1e--> Cl+1 | x1 |
| Sự khử | Cl0 +1e--> Cl-1 | x1 |
b) \(n_{Cl_2}=\dfrac{17,92}{22,4}=0,8\left(mol\right);n_{NaOH}=0,5.4=2\left(mol\right)\)
PTHH: Cl2 + 2NaOH --> NaClO + NaCl + H2O
_____0,8---->1,6--------->0,8---->0,8
=> \(\left\{{}\begin{matrix}C_{M\left(NaCl\right)}=\dfrac{0,8}{0,5}=1,6M\\C_{M\left(NaClO\right)}=\dfrac{0,8}{0,5}=1,6M\\C_{M\left(NaOH\right)}=\dfrac{2-1,6}{0,5}=0,8M\end{matrix}\right.\)
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NT
6 tháng 1 2022 lúc 22:59
Giúp mình câu này với ạ, mình đang cần gấp ạ