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A teacher has to pick 9 of 15 different questions for a test. Once she picks a question, she cannot use it again. How many
A teacher has to pick 9 of 15 different questions for a test. Once she picks a question, she cannot use it again. How many ways can the questions appear on the test?
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Intermediate Algebra Functions & Authentic Applications (Subscription)
Authors: Jay Lehmann
6th Edition
0134779487, 9780134779485
