How many different four-letter codes are there if only the letters A, B, C, D, E, and

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How many different four-letter codes are there if only the letters A, B, C, D, E, and F can be used and no letter can be used more than once?

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Precalculus

ISBN: 978-0321716835

9th edition

Authors: Michael Sullivan

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Question Posted: Apr 04, 2019 11:01 AM

How many different three-letter codes are there if only the letters A, B, C, D, and E can be used and no letter can be used more than once?
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How many different four-letter codes are there if only the letters A, B, C, D, E, and

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Since no letter can be repeated there are 6 ...View the full answer

Precalculus

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