Предмет: Математика, автор: osnovnaya222

при яких значеннях змінної має зміст вираз:
корінь(знак корня)3x-9 ?

Ответы

Автор ответа: BMW52
2

√(3х-9) имеет смысл если подкоренное выражение неотрицательно

3х-9>=0

Х>=3

Предыдущий вопрос
Следующий вопрос
Интересные вопросы
Предмет: Русский язык, автор: Dossman
Морфологический разбор слова "отбившихся"
2 года назад
Предмет: Окружающий мир, автор: stratulat2000
как ты думаешь,почему при виде водопада у одного из туристов возникла мысль об открытом водопроводном кранике
2 года назад
Предмет: Английский язык, автор: tralala77
Помогите перевести текст, плиз :3

MICHAEL FARADAY
Could you imagine your life without television, radio, telephones, without electricity? «Of course not!» – this is the answer. The discovery of how electricity could be generated was one of the great scientific events of history. It was made by Michael Faraday. Michael Faraday was born in 1791 in London in a poor family. His father, a blacksmith, couldn’t find work for a long time, and so when Michael was 14 years old he was sent to work. He found work in a bookshop. There he learnt how to bind books and read as much as he could. He was especially fond of books about science. Once a customer at the bookshop gave him a ticket to a lecture by Humphrey Davy, England’s greatest scientist of that time. After some time Michael got a job of an assistant in a laboratory of Davy. He got interested in the strange new power, electricity, which had been discovered by that time Michael Faraday spent long weeks and months studying this strange force. At last he tried to move a magnet between coils of wires. He discovered that electricity passed from the magnet to the wires, and could become a strong electric current. This is the method which is used in every electric generator throughout the world. This was the beginning of all great machines that make our electricity today
2 года назад
Предмет: Математика, автор: Alexandrlolek
Помогите решить рациональное уравнение пж
8 лет назад
Предмет: Литература, автор: alinashakk
Какие истины открыл маленький принц из рассказа «Маленький принц» побывав на всех планетах ?
8 лет назад