Предмет: Математика, автор: dzonuzin

Помагите я страдаю 30 мин

Приложения:

dzonuzin: пппжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжжж

Ответы

Автор ответа: mgdev7752
2

Ответ:

1) Упростите верхнее неравенство. Получите:

2(у-2)≥3у+1 или 2у-4≥3у+1 ⇒ у≤-5

  Упростите нижнее неравенство. Получите:

   5у+5≤4у+3 или у≤-2

    Решением будет общая область: у≤-5 ("меньше меньшего")

2) 6у-9≤у+6 или 5у≤15 ⇒  у≤3

    12у+4≥5у-10 или 7у≥-14 ⇒ у≥-2

 Решением будет общая область:     -2≤ у≤3

3) 6х+4 больше 5х-5 или х больше-9

   7х+14∠6х+21 или х∠7

   Решением будет общая область:  -9∠х∠7

4) 4х-4∠х-4 или 3х∠0 ⇒ х∠0

   2х+6больше 3х-1 или х∠7

    Решением будет общая область: х∠0 ("меньше меньшего")

5) 3у-3≥2у+1 или у≥4

    2у+4≤3у+4 или у≥0

     Решением будет общая область: у≥4 ("больше большего")

УДАЧИ!

Пошаговое объяснение:


dzonuzin: спасибоооооооооооо
dzonuzin: я страдаль 1 час
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