\(100:5.12+98\)

\(=20.12+98\)

\(=240+98\)

\(=338\)

\(100:5.12+98\)

\(=600+98\)

\(=698\)

Chúc bạn học tốt !

\(100:5.12+98\)

\(=20.12+98\)

\(=240+98\)

\(=338\)

\(F_A=P-F=18-10=8N\)

\(V=\dfrac{F_A}{d}=\dfrac{8}{10000}=8\cdot10^{-4}m^3\)

\(d=\dfrac{18}{8\cdot10^{-4}}=22500\)N/m³

\(F_A=P-P'=18-10=8N\)

\(V=\dfrac{F_A}{d}=\dfrac{8}{10000}=8\cdot10^{-4}m^3\)

\(d=\dfrac{P}{V}=\dfrac{18}{8\cdot10^{-4}}=22500\left(\dfrac{N}{m^2}\right)\)

Ho Chi Minh City is the largest city and the economic, educational and cultural center of Vietnam.
Firstly, it is located in southeastern Vietnam with a tropical climate, especially in dry and wet climates. The location of the city on the Saigon River makes it a busy commercial and passenger harbor, in addition to the continuous aircraft, regular passenger ships between Ho Chi Minh City and destinations. Other in South Vietnam.Ho Chi Minh City is not only a place for shopping for young people but also a destination for sightseeing and shopping for many foreign visitors, where not only can people buy but also buy souvenirs. .Monday, Someone said: "Not to Ben Thanh market is not to Saigon." Another symbol of the city can not fail to mention is Notre Dame Saigon. Coming to Ho Chi Minh City, if not to Nha Rong Harbor - a landmark of great historical significance - is probably a shortcoming.Tuesday, Saigon cuisine is first of all the crystallization of delicious dishes, unique in the South. Those are the countryside dishes of the attractive river. Saigon cuisine is first of all the crystallization of delicious dishes, unique in the South. Those are the countryside dishes of the attractive river.

I was born and raised in Ho Chi Minh City, or it is also known as Saigon. Saigon is the largest city in Vietnam with an extremely huge amount of residents, so almost every street and corner in the center of the city is always bustling. Saigon is famous for its skyscrapers and crowded malls. People love to do shopping, so every weekend the shopping malls are always full of shoppers. The life-style here is very fast and hurried, but people try to spend their free time in the evenings hanging around the streets. Saigon at night is very beautiful, people love to gather in the coffee shops or sit in river banks that go along the streets. My friends and I usually hang out in the evening, and we would to find as many different places to eat as possible. Along with the beauty, Saigon is also famous for delicious fool, and it is felt that the street food is usually better than one in big restaurants. There are so many things left to say about this lovely city, and we can only see the rest of it by exploring it ourselves.

Dịch:
Tôi sinh ra và lớn lên ở thành phố Hồ Chí Minh, hoặc còn được biết đến là Sài Gòn. Sài Gòn là là thành phố lớn nhất Việt Nam với lương cư dân vô cùng đông đúc, vậy nên hầu như mọi con đường và ngã tư ở trung tâm thành phố lúc nào cũng nhộn nhịp. Sài Gòn nổi tiếng với những tòa nhà cao tầng và những khu thương mại sầm uất. Người dân ở đây rất thích đi mua sắm, vậy nên vào mỗi dịp cuối tuần các trung tâm mua sắm thường đầy người. Nhịp sống ở đây rất nhanh và vội vàng, nhưng mọi người vẫn luôn dành thời gian rảnh vào buổi tối để đi dạo quanh các con phố. Sài Gòn về đêm rất đẹp, mọi người thường thích tụ họp ở những quán cà phê hoặc ngồi hóng mát trên những bờ sông dọc theo các tuyến đường. Tôi và các bạn cũng hay xuống phố vào buổi tối, và chúng tôi thích tìm càng nhiều nơi để ăn càng tốt. Thành phố này ngoài cảnh đẹp ra còn nổi tiếng với rất nhiều món ngon, và tôi lại cảm thấy món ăn đường phố thường ngon hơn trong những nhà hàng lớn. Có rất nhiều thứ để nói về thành phố đáng yêu này, và chỉ khi tự khám phá thì chúng ta mới thấy được 

Ho Chi Minh City is the largest city and the region’s centre for economics, education and culture in Vietnam.
First, it is located in the south-eastern region of Vietnam with a tropical climate, specifically a tropical wet and dry climate. The city's location on the Saigon River makes it a bustling commercial and passenger port, besides a constant stream of cargo ships, passenger boats operate regularly between Ho Chi Minh City and various destinations in Southern Vietnam.
Second, Ho Chi Minh City is a large industrial center with more than 600 state enterprises, 20.000 private producing establishment, not to mention the businesses with foreign invested capitals, with numerous forms of production and diversified occupations. So it has high population density with many people from many areas in Vietnam comes and works together.
Next, Ho Chi Minh City has emerged as Viet Nam's main commercial hub and an important motor of economic growth both regionally and nationally. This city has a diversified network of shopping centre, super market, market-day,... Specially, the weekend fairs in HCM City are not only shopping places for young people, but also a destination for sightseeing and shopping for many foreign tourists where people not only can buy supplies but also can buy souvenirs. 

3) a)7³ 

b)11³

c)10⁵

d)x³

 

Bài 5:

a:Ta có: \(2^x=16\)

nên x=4

b: Ta có: \(3^x=243\)

nên x=5

c: Ta có: \(5^{x+1}=125\)

nên x+1=3

hay x=2

d: Ta có: \(5^{x-1}=5\)

nên x-1=1

hay x=2