Ответ по предмету Математика: 2. Разложите многочлены на множители методом группировки: a) ax - by + xy-ab c) x² + 3x + 2x + 6

Предмет: Алгебра, автор: userhuawey12345

При якому значенні змінної не мае змісту вираз x-9
x+20

1 год назад

Предмет: Химия, автор: mrzombie312

7. Встановіть відповідність між основою і парою речовин, які використано, для її добування:
1) Al(OH)3 а) K2O i H2O
2) Fe(OH)3 б) FeCl3 i NaOH
3) KOH в) FeS i KOH
4) Fe(OH)2 г) AgNO3 i H3PO4
д) Al2(SO4)3 i LiOH.

8. Знайдіть відповідність між класом і формулою сполуки:
1) Безоксигенова кислота а) NaOH
2) Нерозчинна основа б) Li3РO4
3) Кислотний оксид в) СО2
4) Середня сіль г) Mg(OH)2
д) H2S
9. Складіть рівняння реакцій згідно з перетвореннями:
SO2 ---- Н2SO3 ---- Al2(SO3)3 ---- Al(OH)3

1 год назад

Предмет: Английский язык, автор: alinatimoshenko25

Do the task BEFORE you read: match the two parts of the word combinations.

people of London-

their houses

the fire

blew

moved easily and quickly

a strong wind

were on fire

usually built wooden houses

the fire

lived in tents in the fields near London were rebuilt in bricks

many buildings

the Great Fire of London

after the fire the people

began in a bakery in Pudding Lane

were very close together

the burnt buildings

burned down about 80% of the city

82

Reading

Read the text and put its parts (a-d) in the right order.

The Great Fire of London

Then the building next to the baker's house started burning and then the next and the next... The fire moved very fast because of the wind. Many buildings were on fire. The fire lasted four days and it burnt down a lot of buildings - about 80% of the city: over 13,000 houses, 87 churches and even St. Paul's Cathedral!

B.

On the second of September 1666 there was a strong wind from the River Thames. It was Saturday night. Londoners were sleeping in their beds. The fire began in a bakery in Pudding Lane. The king's baker and his wife were sleeping in their house too. Suddenly the baker's wife woke up in the middle of the night. She understood that their house was on fire.

C. Around 70,000 people lost their homes in the fire. After the fire many people lived in tents in the fields around London. When houses were rebuilt, a lot of them were made in bricks instead of wood and straw. And the houses weren't built so close together. London became larger. By 1830 there were more than one and a half million people in the capital of Britain.

D.

In the 11th century people of London usually built wooden houses and they were often near each other. Sometimes there were fires in the city, but they were usually fairly small. Then came the year 1666, the year of the Great Fire of London.

E. There are a lot of reasons why the fire was so large, mostly to do with the way houses were built - a lot of them were made from wood, and were very close together. The fire was so big that it was called the Great Fire of London.

1.

2.

3.

4.

5.

1 год назад

Предмет: Литература, автор: leonsia969

Что видит принц на Земле? Чем она отличается от других планет?

Можете ответить сами,а не взять чепуху с интернета?

,,Она вмещает всех: и дельцов, и географов, и королей, и пьяниц, и многих других. Все они отреклись от детства, потеряли чистоту, наивность, умениебескорыстно любить’’-ТАКОЙ ОТВЕТ МНЕ НЕ НУЖЕН.

6 лет назад

Предмет: Информатика, автор: JKOCSGOPRO

Помогите пожалуйста. Даю 50 баллов

6 лет назад

2. Разложите многочлены на множители методом группировки: a) ax - by + xy-ab c) x² + 3x + 2x + 6​

Ответы

2. Разложите многочлены на множители методом группировки: a) ax - by + xy-ab
c) x² + 3x + 2x + 6