Предмет: Алгебра, автор: saradzekson74

срочно пожалуйста
в арифметической прогрессии члены a4 = 1 и a7 = 10 известны. Найдите разница между прогрессией d и ее членом a1.​

Ответы

Автор ответа: Riosly
0

Ответ:11

Объяснение: объяснение в изображении

Приложения:
Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Английский язык, автор: artemz1104
Fill in the gaps. (Заполните пропуск.)

1. Your bag looks heavy! I’ll carry _______ for you.
1) it 2) him 3) them 4) her
2. Someone sent ______ these beautiful flowers for my birthday.
1) my 2) myself 3) me 4) mine
3. We are going for a walk. You can go with ______.
1) ourselves 2) ours 3) our 4) us
4. He wrote a letter to ___________ every day when he was in Paris.
1) himself 2) his 3) him 4) he
5. There is a new film on, but I haven’t seen _______ yet.
1) its 2) he 3) him 4) it
6. He drove so slowly that it took _______ three hours to get there.
1) our 2) we 3) ourselves 4) us
7. In a few minutes _____ was on his way home.
1) his 2) he 3) him 4) himself
8. I’d like those books. Please give ______ to me.
1) them 2) they 3) their 4) these
9. I know ______ and his sister quite well.
1) he 2) his 3) him 4) himself

Ex.2

1. Look at these two cars. This one is ______ and the other one is hers.
1) me 2) myself 3) my 4) mine
2. ________ composition is the best.
1) Yourself 2) You 3) Yours 4) Your
3. It is not my book, it is ______.
1) them 2) themselves 3) theirs 4) their
4. Is this book yours or ________?
1) her 2) his 3) he 4) she
5. The grandfather promised a nice gift to the eldest grandson of ______.
1) his 2) him 3) he 4) himself
6. The dog has lost _______ collar.
1) its 2) him 3) his 4) it
7. It’s your turn, or is it ________?
1) me 2) I 3) mine 4) my
8. A friend of ____ is coming to see us tomorrow.
1) my 2) him 3) our 4) hers
9. I visit _______ grandmother every Saturday morning.
1) me 2) mine 3) myself 4) my
10. He waited patiently while his customers told him _____ troubles.
1) themselves 2) them 3) theirs 4) their

1 год назад
Предмет: Русский язык, автор: дени31
дождь идёт в лесу густом Подлежащие и сказуемое
1 год назад
Предмет: Другие предметы, автор: Мария190809
Какая из красок имеет темно-синий цвет?
1 год назад
Предмет: Английский язык, автор: flower1983
помогите пожалуйста как написать по английски.Я люблю свою коллекцию магнитов потому что это память.они напоминают мне о тех местах где я был.
7 лет назад
Предмет: Алгебра, автор: kima65428
Пожалуйста!!!!!!!!!!!!!!!!!!!!!
7 лет назад