sonya has a bag with 4 green marbles, 7 orange marbles and 9 blue marbles. She randomly selects one marble, does not replace it and then sel

Question

sonya has a bag with 4 green marbles, 7 orange marbles and 9 blue marbles. She randomly selects one marble, does not replace it and then selects another marble. What is the probability that sonya will pick two blue marbles?

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Thiên Ân 6 months 2021-07-20T03:09:26+00:00 1 Answers 1 views 0

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    2021-07-20T03:10:36+00:00

    What’s the answer choices?

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )