Предмет: Алгебра, автор: sapunov2907

представьте в виде обыкновенной дроби бесконечную десятичную дробь 0.4(7)

Ответы

Автор ответа: tatnik12
1

Количество цифр в периоде k=1

Количество цифр после запятой до периода m=1

Все цифры после запятой, включая период а=47

Все цифры до периода b=4

Подставляем все в формулу и всех делов (см фото)

вместо k подставляем столько 9 чему равно k (в нашем случае 9 одна)

вместо m также подставляем столько 0 чему равно m

Y это целая часть числа, у нас 0

Приложения:
Похожие вопросы
Предмет: Английский язык, автор: tupikal777
ПОЖАЛУЙСТА, ОЧЕНЬ СРОЧНО!!! Прочитайте текст и вставьте вместо пропуска нужную грамматическую форму, выбрав ее из 4 вариантов

Thousands of kid's magazines are sold every day worldwide. Some of the printed editions contain non-recyclable plastic toys. Publishing companies sell them with journals to attract adult and kid's attention. These magazines (A) "covermounts". They're made in China with a significant carbon footprint. The magazines travel long distances to get to the UK. Overall, the little toys are harmful to the environment, and each child (B) plenty of them. A 10-year's old Skye receives more than 3 useless plastic toys with journals in her mailbox every month. She (C) with them more than once and has plenty of plastic figures on the shelf. Skye wanted to start her campaign after being inspired by two teenage girls who successfully petitioned McDonald's to ban plastic toys from its Happy Meals. Her petition urges publishers to prohibit the use of plastic in their publications.More than 3,500 people have already signed the petition and Skyes hopes to gain more. Her initiative (D) _ the attention of publishers and media sources. Skye's advertisement was highlighted in her local newspaper in February 2021. Furthermore, she has been featured in national newspapers such as (E) BBC! A: 1) call; 2) calling; 3) are called; 4) to call. B: 1) have; 2) has had; 3) is having; 4) had. C: 1) doesn't play; 2) don't play; 3) not play; 4) isn't playing. D: 1) is being attracted; 2) has now attracting; 3) are now attracting; 4) is now attracting. E: 1) the; 2) a; 3) an; 4) -.
Предмет: Математика, автор: ruslanamienkova
Предмет: Математика, автор: yd29051985