Предмет: Алгебра, автор: Iroziev

свойства арифметического квадратного корня 8 класс

Ответы

Автор ответа: jonik54

2

1) корень из произведения
√а*в = √а * √в, тогда а≥0, в≥0.
пример √81*4 = √81 * √4 = 9 * 2 = 18
2) корень из деления
√а/в = √а/√в
пример √36/49 = √36/√49 = 6/7
3) (√а)^2 = а
пример (√49)^2 = 49
4) √а² = а
пример √4² = 4

Iroziev: Спасибо)

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Русский язык, автор: olgunas

Звуко буквенный разбор слова поздний, гриб

1 год назад

Предмет: Русский язык, автор: life2006

Запишите пожалуйста 10 словосочетаний на тся ться в глаголах:*(
Нужно один и тот же глагол но и на тся и на ться
В том числе обязательно словосочетания с глаголами:удивится(удивиться)строится(строиться)искрится(искриться)+3 своих
Пример:умеет вызвышаться---------вызвышается над городом

1 год назад

Предмет: Қазақ тiлi, автор: danial19

Калай жазылады мынау

1 год назад

Предмет: Обществознание, автор: nastya215487

Подготовь сообщение о тех видах животных и птиц вологодской области, которым грозит исчезновение. Расскажи, как их можно сохранить

7 лет назад

Предмет: Английский язык, автор: незнайка0971

Помогите кто чем может!!! Пожалуйста ответы по английскому 6 класс. 6 класс Тест Unit 5

1. Write the right form of the verbs.

1. When I____________(meet) him, I ________(invite) him to join us.

2. Please, tell me when the party____________(begin) .

3. If you____________(like) this magazine, I ____________(bring) you another.

4. I _______(stay) if she___________( come).

5. I don’t know if they____________(sell) the house.

6. We ____________(go) to the park as soon as the lessons_______(be) over.

2.

Read the text and say whether the sentences are TRUE or FALSE.

In England all girls and boys must wear a particular uniform. If you see a pupil dressed in blue, know for sure that this person comes from England. However, for the past years every school in England may change rules. Pupils are allowed to wear shorts (in summer) and sweaters (if it’s cold). For the most part pupils wear trousers, skirts (only girls), shirts, blouses, blazers and dresses (also for girls). It’s strange, but boys and girls should wear a tie as well.

1. Pupils don’t have a uniform in England.

2. English uniform is often blue.

3. Pupils can wear shorts in summer.

4. Girls shouldn’t wear ties.

5. The boys can wear skirts.

3. Choose the right forms of the verbs in brackets and complete the sentences.

1. Your clothes (is/are) in the bathroom. 2. The pyjamas (is/are) too big for her. 3. There (is/are) a white trainer under the bed. 4. Jeans (is/are) always in fashion. 5. One sandal (is/are) here, where is the other one? 6. His shorts (is/are) really fashionable. 7. Where (is/are) my leggings? 8. There (is/are) a lot of clothes in my wardrobe. 9. There (is/are) two different socks in my bag. 10. I wonder where my black shoe (is/are)

4. Use the prepositions from the box where necessary to complete the sentences.

in, on, to, about, at,off, into, above

1. It is very hot today. The temperature is 35 degrees______zero. 2. When Jane goes_______the shop, she spends a lot of money_______sweets. 3. I’d like to show you Mexico_______ the map, but it is_______my room. 4. Take_______your clothes and come_______ the room. 6. There is a new film ________the cinema this week. 7. Kim is leaving_______London ______the 6 o’clock train. 8. Long skirts are ________fashion now. 11. Sandra is going to put_______a new blouse tonight. 12_______the evening Ben suddenly started talking______the weather.

5.Complete the sentences with the words from the box.

gloves, stylish, pastime, fashion, fur coat, pyjamas, snowballs, old-fashioned, snowflakes, scruffy, boring

1.I don’t like_____________ things because they look too old. 2. Mother always wears ___________ clothes. 3.He is not neat at all. He is always dirty and_________4. ______changes very quickly. 5.I bought a pair of leather_______________ 6. Molly doesn’t like to sleep in her new____________. 7. This______________________ is very expensive. 8. My favourite ____________is watching TV. 9.When he went out, beautiful__________were falling to the ground. 10.Last night I saw a very_________film. 11. In winter we like to throw____________.
даю 40 баллов.

7 лет назад