Quiz Concorso STEM A-26 - Matematica

Siano dati n punti del piano cartesiano con ascisse distinte. Allora:

Complete the sentence correctly Bob ... me this week.

L'utilizzo illecito di programmi è perseguibile in base alle leggi che proteggono:

Il determinante Tocca l'immagine per ingrandire è uguale a:

First read the passage, then complete the sentence or answer the question that follow on the basis of what is explicitly stated in the text rather than on the basis of the knowledge you may have of the issue Psychologists tell us that there are four basic stages that human beings pass through when they enter and live in a new culture. This process, which helps us to deal with culture shock, is the way our brain and our personality react to the strange new things we encounter when we move from one culture to another. If our culture involves bowing when we greet someone, we may feel very uncomfortable in a culture that does not involve bowing. If the language we use, when talking to someone in our own culture, is influenced by levels of formality based on the other person's age and status, it may be difficult for us to feel comfortable communicating with people in the new culture. Culture begins with the 'honeymoon stage'. This is the period of time when we first arrive, in which everything about the new culture is strange and exciting. We may be suffering from 'jet lag', but we are thrilled to be in the new environment, seeing new sights, hearing new sounds and language, and eating new kinds of food. This honeymoon stage can last for quite a long time because we feel we are involved in some kind of great adventure. Unfortunately, the second stage of culture shock can be more difficult. After we have settled down into our new life, working or studying, buying groceries, doing laundry, or living with a home-stay family, we can become very tired and begin to miss our homeland and our family, girlfriend / boyfriend, pets, etc. All the little problems that everybody in life has seem to be much bigger and more disturbing when you face them in a foreign culture. This period of cultural adjustment can be very difficult and lead to the new arrival rejecting or pulling away from the new culture. This 'rejection stage' can be quite dangerous because the visitor may develop unhealthy habits (smoking and drinking too much, being too concerned over food or contact with people from the new culture). This can, unfortunately, lead to the person getting sick, or developing skin infections or rashes, which then makes the person feel even more scared, confused and helpless. This stage is considered a crisis in the process of cultural adjustment and many people choose to go back to their homeland or spend all their time with people from their own culture, speaking their native language. The third stage of culture shock is called the 'adjustment stage'. This is when you begin to realize that things are not so bad in the host culture. Your sense of humour usually becomes stronger and you realize that you are becoming stronger by learning to take care of yourself in the new place. Things are still difficult, but you are now a survivor! The fourth stage can be called 'at ease at last'. Now you feel quite comfortable in your new surroundings. You can cope with most problems that occur. You may still have problems with the language, but you know you are strong enough to deal with them. If you meet someone from your country who has just arrived, you can be the expert on life in the new culture and help him / her to deal with his / her culture shock. There is a fifth stage of culture shock, which many people don't know about. This is called 'reverse culture shock'. Surprisingly, this occurs when you go back to your native culture and find that you have changed, and that things there have changed while you have been away. Now you feel a little uncomfortable back home. Life is a struggle! When does 'culture shock' happen?

La numerazione binaria è un sistema numerico:

Un cubo è equivalente a un parallelepipedo rettangolare, avente le tre dimensioni lunghe, rispettivamente: — 10 cm; — 5 cm; — 20 cm. Qual è la misura della diagonale del cubo?

Reading comprehension A 'tsunami' (Japanese for 'harbor wave') is a series of huge ocean waves caused by a rapid, large-scale disturbance of the sea water. Tsunamis can be caused by submarine volcanic eruptions, submarine landslides, meteor impact, and major earthquakes occurring beneath the seabed causing large vertical movements. In deep water, tsunami waves are less than a metre high, but they can travel at speeds exceeding 800 km per hour and can easily cross an entire ocean basin. When they reach shallow water or narrow inlets, the waves slow down and the height can build into a wall of water, which causes devastation on the shore. According to the passage:

Nei nomi dei file, l'estensione ha lo scopo di:

Qual è la misura del lato di un quadrato inscritto in una circonferenza di raggio r?