(2x+17) (4.1-√20)<0 решение! Нужно срочно! Помогите! - №6193680

(2x+17) (4.1-√20)<0 решение! Нужно срочно! Помогите!
- Предмет:
  Алгебра
- Автор:
  aimee
- 6 лет назад

Ответы 1

Ответ на числовой прямой: X∈(-8.5; + беск)
- Автор:
  leohi3h
- 6 лет назад
- 0
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Помогите пожалуйста срочна надо
Exercise 3. Переведите предложения, обращая внимание на сравнения. 1.    Mathematics is the most important subject for technical students. It is more important than English. 2.    The stronger the magnet, the greater the distance through which it acts. 3.    No problem attracted as much attention as the ecological situation in big cities. 4.    The best way to learn the foreign language is to speak it as often as possible. 5.    The structure of the aircraft has to be as small and light as safety and efficiency will allow.
Exercise 4. Переведите предложения, обращая внимание на значения слов many, much и их форм. 1. The written English is much more difficult than spoken English. 2. You have just translated the most unimportant article; translate one more, please. 3. Most articles in this journal are more informative than the books you have recommended. 4. The more you study, the more you know, consequently, the more you forget. Exercise 5. Переведите предложения, обращая внимание на значения глаголов to be, to have, to do. 1.    The students were working at the laboratory. They didn’t even have breaks. They were to finish at 6 o’clock. 2.    He will have much work. He will have to work hard to improve his project. 3.    I do know that physics is of great importance for engineers. Every technical student is to study it for some years. Do you study physics properly? I do. 4.    Physicists have solved a great many of very important problems. They did the use of nuclear energy possible. But they still have many questions. Now they have to build special solar stations to utilize the energy of the Sun.
Exercise 6. Переведите предложения, обращая внимание на значения слов one, it, that. 1.      It was such a surprise to him that no one could help him. 2.      Our old laboratory equipment was much worse than the new one. We had never thought that it was that decayed. 3.      It is due to radioactive elements that one can measure the thickness of various materials. 4.      One can’t read such technical papers without that dictionary. You may borrow it in the library. 5.      It was in the end of the last century when the idea of automation has become one of the most important for modern industry.
Exercise 7. Переведите  предложения,   обращая   внимание   на    значения модальных глаголов и их эквивалентов. 1.    One ought to say that the discovery of atomic energy was very important for the further development of science and engineering.2.    The lecture of the well-known professor is to begin at 6, therefore the lecturer will have to come at quarter to 6. 3.    You will be able to visit this new workshop only after the new transfer line is installed. 4.    This company must have supplied the first-quality machines for over 10 years. They are allowed to replace the old equipment in our workshop. 5.    May I use those new devices for my research work in the laboratory? 6.    The students mustn’t speak at the lecture and disturb the lecturer by telephone calls. 7.    The driver needn’t repair the engine himself; he should address the maintenance company. 8.    He might have already missed the train. Could you buy him another ticket?
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Этилен -> Х -> бутадиен1,3
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Глюкозу, этиленгликоль,этанол или метанол?
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1 hour 1 day 100 years