OpenStax, Algebra and Trigonometry 2e §13.5 Counting Principles · Exercise 51 · Combinatorics · Permutations & combinations
Counting Principles · Exercise 51
Hector wants to place billboard advertisements throughout the county for his new business. How many ways can Hector choose 15 neighborhoods to advertise in if there are 30 neighborhoods in the county?
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OpenStax, Algebra and Trigonometry 2e · §13.5 Counting Principles · Exercise 51
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