in how many ways can a teenager watch 2 recorded programs from a list of 6 different recordings programs? ____ ways

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in how many ways can a teenager watch 2 recorded programs from a list of 6 different recordings programs? ____ ways

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Hải Đăng 4 years 2021-08-15T16:42:53+00:00 2 Answers 20 views 0

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  1. Adela
    0
    2021-08-15T16:44:14+00:00
    Reply

    30 to make a long story short 6 times 5

  2. kimchi2
    0
    2021-08-15T16:44:51+00:00
    Reply

    30, considering that every program has 5 other programs that the teenager can choose from, making it 6 times 5.

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