Задание ** фото:.............

Question

Задание на фото:.............

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Answer 1

A) 5x-12>=0, <=> x>=12/5 = 12*2/10 = 24/10 = 2,4, <=> x>=2,4.
б) 6x-1>=0 и 7-x>=0, <=> x>=1/6 и x<=7; <=>     (1/6)<=x<=7.