Предмет: Алгебра, автор: 13Darina

які з чисел - 1, 0, 1, 2, 3, задовольняють систему нерівностей пж помогите ​

Приложения:

Ответы

Автор ответа: liliya2803200659
1

Ответ:

а) всі числа задовольняють

б) 2 та 3


13Darina: спасибо
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Помогите пожалуйста. И это срочно
Упражнение 1. Поставьте глаголы в скобках в Present Perfect.


He _____ (finish) training.
She _____ (score) twenty points in the match.
We _____ (watch) all the Champions League matches this season.
That's amazing! She _____ (run) fifteen kilometers this morning!
She _____ (buy) some really nice rollerblades!
Oh, no! I _____ (lose) my money!
My mum _____ (write) shopping list. It's on the kitchen table.
Dad, you _____ (eat) my biscuit!
I’m tired. I _____ (watch) three X-Files videos.
Hurry up! They _____ (start) the film!
Mary _____ (study) hard this year, so she'll pass her exams.
Oh no! She _____ (drop) the plate!
The garden is very green. It _____ (rain) a lot this month.
These are my favourite trousers. I _____ (have) them for five years.
Tom's my best friend. I _____ (know) him for three years.
They _____ (live) in Miami for two years.
Jo has earache. He _____ (have) it since 7 o'clock.
Brad _____ (live) in Chicago since 1998.Упражнение 2. Поставьте глаголы в скобках в Present Perfect negative.

I _____ (not clean) my football boots.
They _____ (not start) their meal.
I _____ (not do) my homework.
He _____ (not win) all his matches this year.
My brother and I _____ (not see) any films this week.
It's my birthday party today. I _____ (not invite) many people.
He _____ (not wash) his hands. They're very dirty.
Mum's really angry. We _____ (not tidy) our room!
I can't play with my friends this evening. I _____ (not finish) my homework.
I _____ (not visit) New York for three years.
Where's Alison? We _____ (not see) her since yesterday.
Dad _____ (not take) a holiday since last August.
John _____ (not play) the violin since he was school.Упражнение 3. Zork и Zena – инопланетяне, впервые прилетевшие на Землю. Они составили список дел. Напишите вопросы и ответы о том, что они уже сделали, а чего пока нет.

Пример:

Zork (eat) a hamburger?

Has Zork eaten a hamburger?

Yes, he has.

Zork and Zena (drink) a cola?

Have Zork and Zena drunk a cola?

No, they haven't.