Предмет: Алгебра, автор: dendik02

ПОМОГИТЕ ПОЖАЛУЙСТА !!!
Оцени значение выражения 4x+5y, если
2

Ответы

Автор ответа: danil2222214
0

Ответ:

4x+5y, если 2;

И так:

2<x<5 ;4<y<7;

4·2+5·4<4x+5y<4·5+5·7 ;

8+13< 4x+5y<20+35 ;

21<4x+5y<55

Ну и всё вроде..

Объяснение:

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