Giúp mk làm bài 2 vs 3
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5 tháng 1 2017
ta có
3x-(5-x)=30+(2x-3)
=> 3x-5+x=30+2x-3 (quy tắc phá ngoặc)
=>4x-5=27+2x
=>4x-2x=27+5 (quy tắc chuyển vế)
=>2x=32
=>x=16
2 tháng 9 2021
sin 650=cos 350
\(cos70^0=sin30^0\)
\(tan80^0=cot20^0\)
\(cot68^0=tan32^0\)
NL
2
5 tháng 1 2017
10-(5-x)=30+(2x-3)
10-5+x=30+2x-3
5+x=27+2x
x-2x=27-5
-x=22
x=-22
DT
0
PH
1
DT
Đỗ Thanh Hải
CTVVIP
14 tháng 6 2021
1 watched
2 locking - was - dropped
4 would finish
5 write - will try - to make
5 left
6 Does - asspoint
III
1 handle
2 satisfying
3 conservation
Giúp mk vs m.n
giúp mk vs
25 tháng 5 2017
Tim Berners-Lee __(1)invented__ the World Wide Web. His first version of the Web was a program named Enquire. At the time, Berners-Lee was __working(2)__ at a laboratory in Geneva, Switzerland. He created the system as a way __that(3)__ sharing scientific information __around(4)__ the world, which uses the Internet, a __(5)world - wide__ network of computers, and hypertext documents. He wrote the __(6)_language_ HTML (Hypertext Mark-up Language), the basic language for the Web, __and(7)__ created URL's (Universal Resources Locators) to designate the location of __each(8)__ web page. HTTP (Hypertext Transfer Protocol) was his set of rules for _linking_(9)__ to pages on the Web. After he wrote the first browser in 1990, thư World Wide Web was up and going. Its __develop(10)__ was phenomenal, and has __changed(11)__ the world. It has made information __more(12)__ accessible than ever before in history.
25 tháng 5 2017
1. A 2. B 3. D 4.C 5. A 6. B 7. B 8. A 9. C 10. B 11. D 12. B
không có đề ak bn..