Предмет: Алгебра, автор: aminaidrisova

Алгебра 8 класс.Только первое уравнение в номере 386

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Автор ответа: Аноним
0
 frac{34x^2-23x}{x+1}= frac{x^2-4}{x+1}   == textgreater  x neq -1 \ \   frac{34x^2-23x}{x+1}   - frac{x^2-4}{x+1} =0 \ \   frac{34x^2-23x-x^2+4}{x+1}=0  \ 34x^2-x^2-23x+4=0 \ 33x^2-23x+4=0 \ D=529-528=1 \ x_1= frac{23+1}{66}= frac{4}{11}   \  \ x_2= frac{23-1}{66} = frac{1}{3}
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Предмет: Английский язык, автор: mariavolkova05
Вставьте на место пропуска правильную форму глагола to be в настоящем времени, обращая внимание на число существительного.

Например: Tonight stars … brighter than yesterday. – Tonight stars are brighter than yesterday.

1.Students … ready to begin the control test. 2. The weather … warm today. 3. The information … highly classified. 4. His manners … awful. 5. All these people … so kind. 6. Your new trousers … nice. I like them. 7. This girl … beautiful. 8. These boys …. well-educated. 9. Her hair … so long. 10. Economics … a very boring subject. 11. Mathematics … my favorite subject. 12. The police … at the turn of High street. 13. His looks … attractive. 14. Chess … a play for two players. 15. Thank you so much, your words … so touching. 16. The band “Linkin Park” …. cool. Their songs “Lost in Echo”, “Castle of Glass”, “Powerless” …. great. 17. Where … my glasses? 18. Progress … impossible to stop. 19. The applause … so loud, the public loves this singer. 20. The boy … the only child in the family. 21. Dogs and cats … so cute. 22. The wolves … hungry. 23. Money … over. 24. Children … small and funny. 25. The latest news … that the Prince of Lichtenstein is getting married. 26. My jeans … still wet, and I wanted to put them on. 27. Experience … the best teacher. 28. Friends … like stars, even if you can’t see them, they are always there. 29. This berry … poisonous. 30. Laughter … the best medicine for sadness.

Найдите правильный вариант заполнения пробела:

1. There are many _______ in big city.

a) thiefs b) thieves

2. We should throw away these old ________.

a) teeth brush b) tooth brushes c) teeth brushes

3. _________ and ________ are animals.

a) Oxes; geese b)Oxen; geese c)oxen; gooses

4. Did you buy two silk ________ for your sister?

a) scarfs b) scarves

5. The _______ of tribes decided to fight for their lands.

a) chieves b) chiefs

6. Two ________ are following the Eskimo.

a) wolfs b) wolves

7. That hunter killed six _______ last week.

a) deers b) deer

8. We can’t question people’s ________.

a) beliefs b) believes

9. Toby counted 2000 _________ before he finally fell asleep.

a) sheep b) sheeps

10. These ________contatin several books on different subjects.

a) shelfs b)shelves
Предмет: Алгебра, автор: лололол2