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Let N be the total number of ways to choose at least one ride, out of a total of 7 different ones, existing in an amusement park. Can it be said that N is a natural number equal to?

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Answer to a math question Let N be the total number of ways to choose at least one ride, out of a total of 7 different ones, existing in an amusement park. Can it be said that N is a natural number equal to?

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Velda
4.5
110 Answers
N = 7C1+7C2+7C3+7C4+7C5+7C6+7C7 = 127

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