1.Из неравенств 1) 2x>70 2) x<100 3) 4x>25 4) x>10 5) x>5 два верных и два неверных?
1) 1 и 3
2) 2 и 3
3) 2 и 4
4) 4 и 5
д) 2 и 5
Даю 20 баллов !! Заранее спасибо
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