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Mariska L.

asked • 08/02/17


I have 7 letters and 6 possibilities with repetition. so that is 7^6 but now they ask me how many word possibilities will not contain one of the letters, how many words will contain one of the letters at least once and then that same letter exactly twice.

1 Expert Answer


Brianna L. answered • 08/02/17

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Chemical engineer for math and science tutoring

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