Найдите набор значений функции: а) y = x²-8x + 12; б) у = (х-4) (х-6) +3

Вероятность Р равна отношению числа благоприятных событий m к числу всех возможных исходов n: Р=m÷n
По условиям задачи для экзамена подготовили билеты с номерами от 1 до 50.
Однозначные номера: 1, 2, 3, 4, 5, 6, 7, 8, 9.
Всего 9. Значит, число благоприятных исходов события, при котором взятый учеником билет имеет однозначный номер m=9.
Число всех возможных исходов n=50.
Тогда вероятность равна: Р=m÷n=9÷50= 0,18
ответ: вероятность того, что наугад взятый учеником билет имеет однозначный номер равна 0,18 (18%).

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Объяснение:

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