Предмет: Математика, автор: fang7961

Помогите спростить примеры даю 40 балов

Приложения:

Ответы

Автор ответа: irina555556

1

Ответ:

1. -1,5а•(-6b)=9ab

2. -4m-15n+3m+18n=-m+3n=3n-m

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Русский язык, автор: Kereng1

Составить из корней данных слов сложные слова.

2 года назад

Предмет: Русский язык, автор: tomarka1987

однократнокореные слова к слову побережье

2 года назад

Предмет: Русский язык, автор: tanyasillyblack

Составить 3 предложение + их схемы и разобрать

2 года назад

Предмет: Другие предметы, автор: kata109

арительный просмотр: Выберете необходимый вариант: 1. I usually ... my Granny on Saturday. a) visits; b) visited; c) visit; d) will visit 2. There ... 30 pupils in our class last year. a) were; b) was; c) are; d) is 3. I can ... English very well. a) spoke; b) speaks; c) speak; d) will speak 4. ... they go to the Zoo with us next week? a) shall; b) will; c) do; d) did 5. I ... to my friend's place yesterday. a) goed; b) went; c) goes; d) will go 6. He will not... his holidays in America. a) spent; b) spended; c) spends; d) spend 7. My pencil ... on the table yesterday. My mother ... it in the box. a) was not, put; b) are not, put; c) were not, put; d) was not, puts 8. Do you like ... to school? Yes, I... . a) to go, did; b) go, do; c) to go, do; d) to go, don't 9. We ….. how to use computers at I. T. lessons. a) learn b) will learn; c) did learn; 10. She wanted to ... us about her brother. a) say; b) tell; c) speak; d) show 2. a) Раскройте скобки в Present Simple 1. My working day (begin) at 7 o’clock. 2. He (not take) a bus to his factory. 3. What she (do) on Saturday evenings? b) Раскройте скобки в Past Simple 1. Mr. Smith (fix) his car yesterday morning. 2. The students (be) in Russian Museum. 3. What your brother (do) yesterday? c) Раскройте скобки в Future Simple 1. I (go) to my doctor tomorrow. 2. His wife (not water) flowers in the garden. 3. What you (do) tomorrow? d) Раскройте скобки в Present Continuous. He (help) his father now. I (not sleep) now. 3. What they (talk) about? 3. Раскройте скобки, употребляя глаголы в необходимом времени. 1. Не (turn) on the television to watch cartoons every morning. 2. I (go) to bed at ten o'clock yesterday. 3. I (go) to the cinema tomorrow. 4. I (be) very busy last summer and I (not go) there. 5. He (get not) up at nine o'clock tomorrow. 6. You (watch) TV yesterday? 7. Who (take) care of the child in the future? 8. When you (leave) home for school yesterday? 9. You (have) a PT lesson yesterday? — No, I ... 10. What you (buy) at the shop tomorrow? — I (buy) a book.

9 лет назад

Предмет: Алгебра, автор: rinchinovGalsan

Пожалуйста помогите со вторым номером

9 лет назад