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6 tháng 6 2016
like living in the countryside because of some reasons. Environmentally speaking, it is a peaceful place. The air is fresh. The space is quiet. We can enjoy healthy natural conditions without
worrying much about environmental pollution.
As for social security, the countryside is a safer place than a city. While urban security situation is always complicated with all kinds of crimes, rural areas are much more secure because most of countrymen are friendly and ready to help one another.
Moreover, rural life is also easier that in cities. People in cities are easy to get stressed because of pollution, job pressures, competitions, etc ... On the contrary, those bad things
are very rare in the countryside. To sum up, except income matters, the countryside is a better residence than cities.
That was my thought, hope you like it !!^_^
6 tháng 6 2016
I like living in the country because of some reasons.In the countryside, the air is clean, the water is pure and the environment is beautiful while most cities choke in their own filth and pollution. Also, people there are friendly. A friendly smile while passing is standard in the countryside and it’s sincere; whereas, in the city few people smile at you. In fact, they are likely to regard you with suspicion if you smile at them. Besides, people in the countryside enjoy more tranquillity than those in big cities. There is less noise and life is calm and relaxed. Once on foot in the city, you find yourself in an ant colony, or a cage with too many rats. As for food, it is fresher in the countryside. Farmers sell fresh produce, which they bring straight from the fields, at their stand just around the corner. Moreover, the city is rife with violence and crimes: Many thefts and murders often take place in the city.
That's all my thought.I hope you like it!
DT
1
NP
0
TN
0
DQ
14 tháng 10 2018
a) \(15\cdot5+75\cdot5+5\cdot3+5\cdot7\)
\(=5\left(15+75\right)+5\left(3+7\right)\)
\(=5\cdot90+5\cdot10=5\left(90+10\right)=5\cdot100=500\)
b) \(2\cdot200+4\cdot200+4\cdot50+125\cdot8\)
\(=2.2.100+4\cdot200+4\cdot50+125\cdot2\cdot4\)
\(=4\left(100+200+50+250\right)\)
\(=4\cdot600=2400\)
c) \(125\cdot20\cdot80\cdot2\cdot100\cdot5\)
\(=\left(125\cdot8\right)\cdot\left(2\cdot5\right)\cdot100\cdot20\)
\(=1000\cdot10\cdot100\cdot20\)
\(=20000000\)
29 tháng 7 2017
\(F=\left(1-\frac{1}{4}\right).\left(1-\frac{1}{9}\right).\left(1-\frac{1}{16}\right).\left(1-\frac{1}{25}\right)...\left(1-\frac{1}{100}\right)\)
\(F=\frac{3}{4}.\frac{8}{9}.\frac{15}{16}.\frac{24}{25}...\frac{99}{100}\)
\(F=\frac{1.3}{2.2}.\frac{2.4}{3.3}.\frac{3.5}{4.4}.\frac{4.6}{5.5}...\frac{9.11}{10.10}\)
\(F=\frac{1.2.3.4...9}{2.3.4...10}.\frac{3.4.5...11}{2.3.4.5...10}\)
\(F=\frac{1}{10}.\frac{11}{2}=\frac{11}{21}\)
PN
3
KV
18 tháng 7 2023
5ⁿ⁺¹ - 5ⁿ = 100
5ⁿ.(5 - 1) = 100
5ⁿ.4 = 100
5ⁿ = 100/4
5ⁿ = 25
5ⁿ = 5²
n = 2
NT
Nguyễn Thị Thương Hoài
Giáo viên
VIP
18 tháng 7 2023
5n+1 - 5n = 100
5n (5 -1) =100
5n.4 =100
5n = 100: 4
5n = 25
5n = 52
n =2
GF
1
AA
21
12 tháng 8 2017
1 + 2 = 3
3 + 5 = 8
6 + 7 = 13
100 + 100 = 200
73 - 90 = -17
k mk nha
OK
ukm