Предмет: Математика, автор: йцу18

сравните значения выражения 2y и -y при y=-2

Ответы

Автор ответа: artem99466
0
2у при у=-2
2*(-2)=-4

-у при у=-2
2

-4<2
Автор ответа: вадимstrike
0
2у-у при у=2
2*2-2=2
(2*2=4)
(4-2=2)
Похожие вопросы
Предмет: Английский язык, автор: aynosson
II. Закончите следующие предложения, употребив каждый глагол дважды: один раз в Present Simple, а другой - в Present Continuous.

have
He ______ four cars, all of them Rolls-Royces.
I _______ lunch with my mother tomorrow.

think
What ________ you _______ of Stephen Spielberg's latest film?
You're day-dreaming. What ___________ you __________ about?

expect
I ______ an important phone call from America. Could you tell me when it comes?
I _____ you're hungry after so much hard work. Shall I get you something?

appear
He _________ to understand what you say to him, but when you ask him a question, he isn't so sure.
Roy Pond _________ at Her Majesty's Theatre in the role of King Lear.

smell
Something ___________ good in the kitchen. What's cooking?
Why __________ you __________ the meat? Do you think it's gone off?

weigh
I need to know how much the meat _____ to know how long to cook it for.
Why _____ you _____ yourself? Do you think you've put on weight?

see
I _________ what you mean, but I don't agree.
She ________ a solicitor about her aunt's will.

have
I usually pick up languages quickly, but I ____ difficulties learning Chinese.
He __________ more clothes than a department store.

look
It ________ as if it's going to rain.
What are you doing on your hands and knees? ______ you ______ for something?

think
What _________ you ________ of doing when you leave here?
How much ________ you _________ it would cost to fly to Australia?
Предмет: География, автор: Аноним