Предмет: Алгебра, автор: misterschool

Решите неравенство 5x2-12x-9>0

patrulgavno123: ок
misterschool: 5x^2-12x-9>0
patrulgavno123: че за дебилы отвечают
misterschool: хз
patrulgavno123: я уже знаю решение
Аноним: что б балы заработать
misterschool: ты баллы не заработаешь так
misterschool: у тебя отнимут их за такое
misterschool: и бан будет
patrulgavno123: все

Ответы

Автор ответа: patrulgavno123
0

5²-12х-9>0=25-12х-9>0=-12х>-16=х<4/3 (4/3 это дробь четыре третьих)

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FROM THE HISTORY OF RAILWAYS IN GREAT BRITAIN

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Notes: * I t should be said – следует сказать
** the…, the – чем…, тем
*** the House of Commons – Палата Общин.

Укажите, какие из следующих утверждений соответствует содержанию текста. используйте фразы It is true, it is false. Исправьте неверные утверждения
1. The first horse-powered railways in Great Britain were used for transporting passengers in large cities.
2. The stationary steam engine was invented by James Watt.
3. The speed of the first Stephenson’s locomotive was 29 miles an hour.
4. The first Stephenson’s locomotive was tested on the Liverpool-Manchester Railway.
5. James Watt made a desing of the first locomotive.
6. Stephenson received a prize of fifty trousand pounds for his locomotive the “Rocket"
7. At first lots of people were afraid of the railways.
8.The "Rocket" could pull more than thirteen tons.
9. In the 19th century, the gauge of all railways was 4 feet 8½ inches.
10. Now, most railways in Britain have the standard gauge.
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