Mathematics, 23.07.2021 18:20 Saise9288
Mỗi phòng học có 6 bóng đèn. Xác suất để mỗi bóng đèn hỏng là 0,2. Gọi x là số bóng đèn sáng ( x = 0;1;2;..6 )
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Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?
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Mỗi phòng học có 6 bóng đèn. Xác suất để mỗi bóng đèn hỏng là 0,2. Gọi x là số bóng đèn sáng ( x = 0...
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