Đồ thị sau đây là của hàm số nào?
Đồ thị sau đây là của hàm số nào?
Câu hỏi liên quan
Kênh đào Pa-na-ma nối hai đại dương nào với nhau?
Cây trồng có mối quan hệ với mấy yếu tố chính?
Read the following passage about the e-waste crisis and mark the letters A, B, C, or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.
[I] Electronic waste, commonly known as e-waste, refers to discarded electronic devices like smartphones, computers, and household appliances. [II] As technology rapidly advances, many of these devices become outdated quickly, leading to an increase in e-waste globally. [III] Experts estimate that millions of tons of e-waste are generated annually, and the numbers continue to rise as people upgrade their gadgets more frequently. [IV]
The improper disposal of e-waste presents significant environmental and health risks. When e-waste is dumped in landfills, it often releases harmful chemicals, such as lead and mercury into the soil and water, which can wreak havoc on ecosystems and pose serious health risks to nearby communities. Moreover, a large portion of e-waste is transported to developing countries, where regulations on electronic disposal may be less strict. Here, workers, often without adequate protection, dismantle electronic devices by hand to retrieve valuable metals like gold and copper, exposing themselves to toxic substances.
To address this growing problem, many countries and organizations are promoting e-waste recycling programs. These initiatives encourage consumers to recycle old electronics responsibly, rather than discarding them. By doing so, valuable materials can be reused, reducing the demand for mining new resources and helping to minimize environmental damage. Additionally, some companies are adopting sustainable design strategies, producing products that are easier to repair or upgrade, thereby extending their lifespan.
Public awareness about the impacts of e-waste is gradually increasing, and more people are becoming motivated to make eco-friendly choices. However, achieving global cooperation remains challenging, as effective solutions require collaboration across borders.
(Adapted from The Guardian)
Khi chất thải điện tử được đổ vào các bãi rác, nó thường giải phóng các hóa chất có hại, như chì và thủy ngân vào đất và nước, có thể tàn phá hệ sinh thái và gây ra rủi ro sức khỏe nghiêm trọng cho các cộng đồng lân cận.Which of the following best summarises paragraph 3?
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 18 to 22.
The origins of popular foods often reveal surprising historical insights. (18)______. While many assume that curry was introduced to England through interactions with India in the 1600s, historical evidence suggests otherwise. Wealthy English families,(19)______, were consuming dishes prepared with curry spices as early as the time of King Richard I. Notably, the term “curry” appears in an English cookbook published in 1377, long before British ships traveled to India. This early mention highlights how food traditions can transcend borders and evolve over centuries, influenced by trade and exploration.
Similarly, pizza, a dish frequently associated with Italian cuisine, (20)______. While modern pizza originated in Naples, records indicate that in the 500s, Persians consumed round, flat bread topped with cheese. This precursor to the pizza we know today reflects the global interconnectedness of culinary traditions, where simple yet innovative recipes emerge in different cultures independently. (21)______.
The history of hamburgers also deviates from common perceptions. While widely regarded as an American culinary creation, (22)_______. According to historical accounts, Otto Kuasw created the first hamburger in 1891, and by 1895, German sailors had introduced the dish to the United States. This journey from Germany to the U.S. demonstrates how cultural exchanges shape iconic dishes.
Understanding the origins of these foods enhances appreciation of their cultural and historical significance. Regardless of their provenance, their enduring appeal lies in their taste, adaptability, and ability to bring people together across time and space.
Hàm số đồng biến trên khoảng nào sau đây?
Read the following passage and mark the letter A, B, C, or D to indicate the option that best fits each of the following questions from 23 to 30.
The 22nd Southeast Asian Games were held in Vietnam from December 5th to 13th, 2003. It marked the first time Vietnam hosted such a significant sporting event, yet the Games were a great success. They became a grand festival that impressed sports enthusiasts with their spirit of solidarity, cooperation for peace, and development. The event demonstrated Vietnam’s capability to unite the region through sports.
Athletes from 11 participating countries competed in 32 sports, winning a total of 444 gold medals. Teams in table tennis, badminton, karate, volleyball, basketball, and wrestling showcased some of the region’s top competitors. Notably, many records set during the Games were close to international standards. Vietnam emerged victorious, securing 158 gold medals and finishing at the top of the medal standings. Thailand came second with 90 golds, while Indonesia ranked third with 55. Singapore and Vietnam were the only nations with participants honored as the Most Outstanding Athletes in Swimming and Shooting events.
In football, the Vietnamese Women’s Football team successfully defended their SEA Games title, a moment of pride for the host nation. In the Men’s Football Final, Vietnam faced Thailand but lost, with the Thai team taking home the gold medal. Other sports, such as karate, athletics, bodybuilding, and wushu, saw young and talented Vietnamese athletes delivering exceptional performances and securing numerous gold medals. The strong performance of the athletes reflected Vietnam’s growing prowess in the regional sports arena.
Vietnam’s first-place finish was not surprising. To prepare for the 22nd SEA Games, the country implemented an intensive training program for its athletes, involving both domestic and international facilities. Furthermore, the enthusiastic support from the Vietnamese people inspired the athletes to compete in high spirits. This success solidified Vietnam’s reputation as an excellent host for international sporting events. With this achievement, Vietnam has demonstrated its potential to host even larger competitions, such as the Asian Games, in the future.The word ‘intensive’ in paragraph 4 is OPPOSITE in meaning to ______.
Cần phải học tập và khám phá lịch sử vì học lịch sử giúp chúng ta
Biên độ nhiệt năm của phần lãnh thổ phía Bắc cao hơn phần lãnh thổ phía Nam nước ta do nguyên nhân chủ yếu nào sau đây?
Bài học kinh nghiệm lớn nhất của cách mạng tư sản Pháp để lại cho các cuộc đấu tranh thời kì sau là gì?
Các lĩnh vực trao đổi, mua bán mà ở đó các chủ thể kinh tế tác động qua lại lẫn nhau để xác định giá cả và số lượng hàng hoá, dịch vụ được gọi là gì?
Xuất phát giá trị đầu vào là số nguyên dương \(N\), thuật toán \(P\) được tiến hành như sau:
1. Tính tổng các chữ số của \(N\) để thu được \({{N}_{1}}\);
2. Tính tổng các chữ số của \({{N}_{1}}\) để thu được \({{N}_{2}}\);
3. Cứ như vậy cho đến lúc giá trị của các \({{N}_{k}}\) không thay đổi nữa thì dừng lại và ghi kết quả làm giá trị đầu ra \(\text{P}\left( \text{N} \right)\).
Ví dụ với \(\text{N}=883743746\), \({{N}_{1}}=8+8+3+7+4+3+7+4+6=50\), \({{N}_{2}}=5+0=5\), \({{N}_{3}}=5\), do vậy giá trị đầu ra \(\text{P}\left( 883743746 \right)\) bằng 5.
Điền số tự nhiên vào chỗ trống để hoàn thiện
Câu sau:
Nếu tiến hành thuật toán P với số được cấu tạo từ ngày Giải phóng thủ đô, \(N={{10}^{10194}}\) thì giá trị đầu ra \(\text{P}\left( \text{N} \right)\) bằng (……).
Giá trị của giới hạn \(\mathop {\lim }\limits_{x \to 3} \sqrt {\frac{{9{x^2} - x}}{{\left( {2x - 1} \right)\left( {{x^4} - 3} \right)}}} \) là
Biết nhiệt hóa hơi riêng của ethanol là 8,41.105 J/kg. Nhiệt lượng cần để làm bay hơi hoàn toàn 0,5 kg ethanol là
Phần II. Câu trắc nghiệm đúng sai. Thí sinh trả lời từ câu 1 đến câu 4. Trong mỗi ý a), b), c), d) ở mỗi câu, thí sinh chọn đúng hoặc sai.
Quan sát các bước thực hiện thí nghiệm sau:\
Trong sinh sản vô tính các cá thể mới sinh ra như thế nào?
Although noise, commonly defined as unwanted sound, is a widely recognized form of pollution, it is very difficult to measure because the discomfort experienced by different individuals is highly subjective and, therefore, variable. Exposure to lower levels of noise may be slightly irritating, whereas exposure to higher levels may actually cause hearing loss. Particularly in congested urban areas, the noise produced as a by-product of our advancing technology causes physical and psychological harm, and detracts from the quality of life for those who are exposed to it.
Unlike the eyes, which can be covered by the eyelids against strong light, the ear has no lid, and is, therefore, always open and vulnerable; noise penetrates without protection. Noise causes effects that the hearer cannot control and to which the body never becomes accustomeLoud noises instinctively signal danger to any organism with a hearing mechanism, including human beings. In response, heartbeat and respiration accelerate, blood vessels constrict, the skin pales, and muscles tense. In fact, there is a general increase in functioning brought about by the flow of adrenaline released in response to fear, and some of these responses persist even longer than the noise, occasionally as long as thirty minutes after the sound has ceased.
Because noise is unavoidable in a complex, industrial society, we are constantly responding in the same way that we would respond to danger. Recently, researchers have concluded that noise and our response may be much more than an annoyance. It may be a serious threat to physical and psychological health and well-being, causing damage not only to the ear and brain but also to the heart and stomach. We have long known that hearing loss is America's number one nonfatal health problem, but now we are learning that some of us with heart disease and ulcers may be victims of noise as well. Fetuses exposed to noise tend to be overactive, they cry easily, and they are more sensitive to gastrointestinal problems after birth. In addition, the psychic effect of noise is very important. Nervousness, irritability, tension, and anxiety increase affecting the quality of rest during sleep, and the efficiency of activities during waking hours, as well as the way that we interact with each other.
Which of the following statements would the author most likely support?
Một cái bánh ít lá gai có dạng hình chóp tứ giác đều với cạnh đáy là 4 cm và cạnh bên là 6 cm. Thể tích của cái bánh này bằng bao nhiêu \({\rm{c}}{{\rm{m}}^3}\)? (Làm tròn kết quả đến hàng đơn vị)
Một sóng ngang truyền trên một dây rất dài có phương trình sóng là \[u = 6\cos (4\pi t - 0,02\pi x)\,\] trong đó u, x tính bằng cm, t tính bằng s.
Phát biểu
Đúng
Sai
a
Biên độ sóng là 6 cm.
b
Bước sóng là 100 cm.
c
Tốc độ lan truyền của sóng là 200 cm/s.
d
Tại điểm có tọa độ x = 25 cm lúc t = 4 s, giá trị của li độ u là 6 cm.
Hoạ sĩ vẽ thiết kế một loại gạch trang trí có dạng như Hình 1, gạch có dạng hình vuông cạnh 8 dm. Khi đặt bản vẽ trong hệ tọa độ Oxy với đơn vị của mỗi trục là 1 dm thì mối nét cong phía trong thuộc một trong hai đường hypebol \({\rm{y}} = - \frac{4}{{\rm{x}}},{\rm{y}} = \frac{4}{{\rm{x}}}\) (Hình 2); các cạnh của viên gạch lần lượt thuộc 4 đường thẳng \({\rm{x}} = - 4,{\rm{x}} = 4,{\rm{y}} = - 4,{\rm{y}} = 4.\) Người ta sơn màu hồng vào phần hình được gạch chéo như Hình 3. Diện tích phần sơn màu hồng là bao nhiêu \({\rm{d}}{{\rm{m}}^2}\) (làm tròn kết quả đến hàng phần mười)?
Cho tam giác có độ dài ba cạnh lần lượt là \(1\), \(2\), \(\sqrt{5}\). Độ dài đường cao ứng với cạnh lớn nhất bằng
