Ответ по предмету Алгебра: цифры четырехзначного числа записали в обратном порядке и из большего числа вычли меньшее. Докажите,что разность делится на 9

Предмет: Биология, автор: AgataAgata20

Помогите!
Какая польза деревьям и грибами от совместного проживания и образования МИКОРИЗЫ?

6 лет назад

Предмет: Английский язык, автор: vsezfox

ПОМОГИТЕ ПОЖАЛУЙСТА!!! СРОЧНО!
1. What time * your friends?
have you met
have you been meeting
did you meet
2. Laura's the youngest member of our band. She * school only a month ago.
has left
has been leaving
left
3. * as a nurse from 1999 to 2001.
I worked
I've worked
I've been working
4. I love this book. This is the third time * it.
I read
I've read
I've been reading
5. Phil and I * in the same band for five years. We still enjoy it.
had played
played
have played
6. Peter's been working at the new airport * November.
-
for
since
7. * did your brother and his wife move to the south coast?
When
How long
How long is it since
8. Evan and Jane had a farm in Wales, * they? Are they still there?
hadn't
weren't
didn't
9. * a lot of fun on holiday. It was much more exciting than we'd expected.
We've got
We had
We were having
10. I asked Mark if I could borrow his computer magazine, but he * it away.
already threw
has already thrown
had already thrown
11 Really? * the shoes outside?
Had she worn
Has she worn
Has she been wearing
12. My back hurts. * heavy furniture all day.
I've been lifting
I've lifted
I lifted
13 Not really. I * very much in the last few weeks.
haven't been understanding
haven't understood
hadn't understood
14. I'd like to go to Portugal for my holiday. * about it and I think it sounds wonderful.
I'd read
I'd been reading
I've been reading
15. Yes, please. But I need a shower first because * football. I've been playing
I played
I've played
16. I can't find any nice postcards. * any?
Have you been seeing
Had you seen
Have you seen
17. I don't think Rachel is in the office today. She * to any of my messages.
hadn't replied
hasn't replied
didn't reply
18
When we arrived to take Joe to the airport, he was still packing his suitcase. He was late because * his passport.
he was looking for
he'd been looking for
he's been looking for
19 In fact, I * that I'd forgotten it.
didn't realise
hadn't realised
hadn't been realising
20 The shop next to the post office has been empty for months. It * a ladies' clothes shop.
has been
used to be
was used to being
21
A: Why * with your sister when you were teenagers?
did you use to argue
were you used to arguing
have you been arguing
22 How long * to your family?
has this house been belonging
does this house belong
has this house belonged

23. Mark and Louise * to each other since they quarrelled a few weeks ago.
don't speak
haven’t spoken
didn't speak
24. * to watch the match with him.
He'd wanted
He wanted
He's wanted
25. Computers * the way we work. Communication is much easier.
have changed
had changed
changed

6 лет назад

Предмет: Українська мова, автор: explosionofgames459

СРОЧНО НЕПРАВИЛЬНО вжито форму наказового способу дієслова в реченні
A Надішли мені своє відео.
Б Перегляньмо цікаве відео.
в Не поспішай видаляти відео.
г Давай запишемо нове відео.

6 лет назад

Предмет: Физика, автор: Limyte

1. Тело целиком погружено в жидкость. Выберите верное утверждение: 1) сила тяжести, действующая на тело, увеличивается; 2) на тело не действует сила Архимеда; 3) масса тела не изменяется; 4) вес тела не изменяется.

9 лет назад

Предмет: Физика, автор: shkololo333222

ребята спасите умоляю от этого много зависит завтра сдавать, оценка зависит помогите будьте людьми) 6 задач, или хотя бы частично решите умоляяяю

1.вычислите давление на дно марианской впадины, глубина которой 11022м, плотность воды 1030 кг/м3 (в кубе)

2.В бочке с водой на расстоянии 40 см от ее верха имееться отверстие, закрытое пробкой. Площадь отвверстия 1см2(в квадрате) Чему равна сила давления на пробку?

3.Малый поршень гидравлического пресса под действием силы 500Н опустился на 15мм, при этом большой поршень поднялся на 5см. Какая сила действует на большой поршень?

4.Высота воды в стакане 15см. Какое давление на дно стакана производит вода?

5.Давление, развиваемое насосом водонапорной башни, равно 500кПа. На какую высоту сможет поднимать воду такой насос?

6.Сосуд вместимостью 30дм3 (в кубе) находитьсвя в воде. Определите выталкивающую силу, действующую на него?

Прошу помогите люди

9 лет назад

цифры четырехзначного числа записали в обратном порядке и из большего числа вычли меньшее. Докажите,что разность делится на 9

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