ОГЭ-2021. Математика. Вариант 1/36 (+геометрия)
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Medium
Юрий Никонов
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14 questions
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1.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Найдите значение выражения
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Одно из чисел
Какое это число?
3.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Найдите значение выражения при a=2.
4.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Найдите корень уравнения .
5.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
В магазине канцтоваров продается 200 ручек: 31 красная, 25 зеленых, 38 фиолетовых, остальные синие и черные, их поровну. Найдите вероятность того, сто случайно выбранная в этом магазине ручка будет красной или черной.
6.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Установите соответствие между формулами. которыми заданы функции, и графиками этих функций.
В таблице под каждой буквой укажите соответствующий номер.
АБВ
7.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Центростремительное ускорение при движении по окружности ( в м/с2) вычисляется по формуле a=ω2R, где ω - угловая скорость (в с-1), R - радиус окружности (в метрах). Пользуясь этой формулой, найдите радиус R, если угловая скорость равна 9 с-1, а центростремительное ускорение равно 243 м/с2. Ответ дайте в метрах.
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