Предмет: Математика, автор: lizga1

Дана геометрическая прогрессия (bn) знаменатель которой равен -3 b1=-6 найти b5

Ответы

Автор ответа: oganesbagoyan
0
b₅ = b₁*(q^4) =(-6)*((-3)^4) = (-6)*81= - 486 .
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проверьте задания, поправьте и где-то допишите. Пожалуйста.
2. Put the verb «to be»
1. There ...are...... many windy days in winter.
2. These cabins ...are..... small.
3. I ..am.... reading a magazine.
4. Who ....is....... on duty today?
5. We .....are..... having dinner now.

3. Insert the prepositions where necessary (in, on, at, from, of).
1. The year begins .....at.... the 1st of January.
2. The days ...in... the week are: Sunday, Monday, ets.
3. How many months are there .....in..... a year?
4. He is good ....in.... English.
5. They are ....from...... Scotland.

4. Put the sentences into the plural ( мн.ч) form:
1. This is a desk.
2. He works as a teacher.
3. That is a big house.
4. The girl is playing in the yard now. The girls are playing in the yard now.
5. Translate into English:
1. Они на уроке английского языка. They are at the English lesson.
2. Я - моряк. I am a sailor.
3. Эта дорога длиннее. This road is longer.
4. Мой брат работает на заводе. My brother works at the factory.
5. Вечером мы смотрим телевизор и слушаем радио. . In the evening we are watch TV and listen radio
6. Это самый большой англо-русский словарь.
7. Мы умеем читать по-английски.

6. Put the sentences into the negative form:
1. I am at the library now. - I am not at the library now.
2. The captain knows English very well. - The captain is not know English very well.
3. They are reading now. - They are not reading now.

7. Put the sentences into the interrogative form:
1. There are many passengers on board the ship. - Are there many passengers on board the ship?
2. He is writing a test-paper now. - Is he writing a test-paper now?
3. We live in Kaliningrad. - Are we live in Kaliningrad?


23. Проспрягайте глагол to sail в настоящем длительном времени. Как оно образуется?

24. Проспрягайте глагол to have (in the Present Indefinite Tense).

25. Проспрягайте глагол to work (in the Present Indefinite Tense).

12. Проспрягайте глагол to be.
Переведите на английский язык:
Он - курсант,
она - врач,
они - студенты,
ты - моряк,
я - на судне,
он - на мостике,
они - в порту,
ты - в каюте.

Предмет: Английский язык, автор: meduzakoy4kla