Lượng cung có tác động như thế nào đến lượng cầu hàng hóa, dịch vụ trong nền kinh tế thị trường?

Với số nguyên dương \(n\), gọi \(a_{3 n-3}\) là hệ số của \(x^{3 n-3}\) trong khai triển thành đa thức của \(\left(x^{2}+1\right)^{n}(x+2)^{n}\). Tìm \(n\) để \(a_{3 n-3}=26 n\).

Một máy bay đang bay ngang với tốc độ 150 m/s ở độ cao 480 m thì thả một gói hàng. Lấy g = 9,8 m/s². Thời gian để gói hàng chạm mặt đất và tầm bay xa của gói hàng lần lượt là

Nửa mặt phẳng không bị gạch chéo ở hình dưới đây là miền nghiệm của bất phương trình nào trong các bất phương trình sau?

CHỦ ĐỀ 7

(Tham khảo bài văn của chủ đề trong đường link dưới đây ở trang 56)

https://tvsthpt.dlib.vn/app/doc-sach-ebook/d0a01a0e4114

Và trả lời câu hỏi sau:

Khi nói về cấu tạo của ti thể phát biểu nào sau đây không đúng?

Biết làm sạch tắm da thú che thân cho ấm và cho “có văn hoá”. Đó là đặc điểm của:

Trong các phương pháp sau, phương pháp nhân giống vô tính nào có hiệu quả nhất hiện nay?

Read the following passage about endangered languages and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questionsfrom 31 to 40.

[I] Social media has become a dominant force in modern communication, offering a range of benefits and challenges. [II] It has revolutionized the way people interact, share information, and even form relationships. [III] While these platforms offer opportunities for connection and expression, they also have their drawbacks. [IV] For instance, excessive use of social media has been linked to a range of negative effects, including mental health issues, social isolation, and decreased productivity. [V] However, when used responsibly, social media can also offer a variety of positive outcomes, such as the ability to stay connected with loved ones, network professionally, and access valuable information and resources.

One of the major benefits of social media is its ability to keep people connected. For example, individuals who live far apart can maintain close relationships through regular communication on these platforms. Social media also facilitates professional networking, allowing users to connect with potential employers or clients, and enabling companies to promote their products and services to a global audience. Additionally, platforms like Facebook, Twitter, and Instagram provide a space for people to share ideas, opinions, and creative work, fostering a sense of community and collaboration.

Despite these advantages, there are serious concerns about the negative impact of social media, particularly on mental health. Studies have shown that excessive social media use can contribute to feelings of anxiety, depression, and loneliness. This is often attributed to the unrealistic portrayals of life that are commonly shared on these platforms, leading to comparisons that can make individuals feel inadequate or left out. Furthermore, constant exposure to negative news or online bullying can exacerbate these feelings and contribute to long-term psychological stress.

Another issue with social media is its potential to distract people from their daily responsibilities. With notifications constantly popping up and endless streams of content to scroll through, individuals may find it difficult to focus on tasks such as work, school, or personal obligations. This can result in decreased productivity and a lack of attention to important matters.

Ultimately, the impact of social media depends on how it is used. If individuals are mindful of their usage patterns and take steps to limit their time on these platforms, they can enjoy the benefits of staying connected and informed without the negative consequences. Parents, educators, and mental health professionals can also play a role in helping young people develop healthy habits and manage their social media use effectively.

What can be inferred from the passage?

Acetylsalicylic acid (thuốc Aspirin) có công thức cấu tạo như hình bên. Phát biểu nào sau đây là không đúng?

Cho hình chóp S.ABC đáy là tam giác đều cạnh a, mặt bên SBC là một tam giác đều và vuông góc với đáy. Tính khoảng cách từ điểm B đến mặt phẳng (SAC)? 

Em hãy cho biết những nhận định sau đây đúng khi nói về hệ thống pháp luật Việt Nam?

Mục tiêu của việc thành lập Nhà nước Liên bang Cộng hòa xã hội chủ nghĩa Xô viết là

Cho góc lượng giác (Ou, Ov) có số đo là \(\frac{{2\pi }}{5}\), góc lượng giác (Ou, Ow) có số đo là \(\frac{{3\pi }}{5}\). Số đo góc lượng giác (Ov, Ow) là?

Hệ thống bôi trơn có nhiệm vụ đưa dầu bôi trơn đến các ........ của các chi tiết để .......... làm giảm ma sát, mài mòn và tăng .......... của các chi tiết máy.

Khi lập kế hoạch tài chính cá nhân chúng ta cần lưu ý điều gì?

Read the passage below and choose A, B, C or D to answer each question from 641 to 645.

Cities develop as a result of functions that they can perform. Some functions result directly from the ingenuity of the citizenry, but most functions result from the needs of the local area and of the surrounding hinterland (the region that supplies goods to the city and to which the city furnishes services and other goods). Geographers often make a distinction between the situation and the site of a city. Situation refers to the general position in relation to the surrounding region, whereas site involves physical characteristics of the specific location. Situation is normally much more important to the continuing prosperity of a city. If a city is well situated in regard to its hinterland, its development is continuing prosperity of a city. If a city is well situated in regard to its hinterland, its development is much more likely to continue. Chicago, for example, possesses an almost unparalleled situation: it is located at the southern end of a huge lake that forces east-west transportation lines to be compressed into its vicinity, and at a meeting of significant land and water transport routes. It also overlooks what is one of the world’s finest large farming regions. These factors ensured that Chicago would become a great city regardless of the disadvantageous characteristics of the available site, such as being prone to flooding during thunderstorm activity.

Similarly, it can be argued that much of New York City’s importance stems from its early and continuing advantage of situation. Philadelphia and Boston both originated at about the same time as New York and shared New York’s location at the western end of one of the world’s most important oceanic trade routes, but only New York possesses an easy-access functional connection (the Hudson- Mohawk Lowland) to the vast Midwestern Hinterland. This account does not alone explain New York’s primacy, but it does include several important factors. Among the many aspects of situation that help to explain why some cities grow and others do not, original location on a navigable waterway seems particularly applicable. Of course, such characteristics as slope, drainage, power resources, river crossings, coastal shapes, and other physical characteristics help to determine city location, but such factors are normally more significant in early stages of city development than later.

Which of the following does the author probably support?

Các phát biểu dưới đây là đúng hay sai khi nói về chức năng của protein?

Hi Duong,

How have you been? You asked me to tell you about my family routines, so here they are.

a. Second, every Friday evening, we bake something sweet. Sometimes it's cookies, sometimes it's a cake.

b. I really enjoy these routines because they make me feel close to my family and help me learn new skills.

c. Third, on Sunday afternoons, we visit the library. We borrow books, read quietly for a while, and sometimes join storytelling events.

d. First, my family eats dinner together every night. It's the best time to share what happened during the day and listen to each other.

e. We all help – my dad measures the ingredients, my mum mixes them, and I decorate.

Do you and your family have any similar activities?

Hope to hear from you soon.

Best,

Nam