How many different 7-letter words can be made a. if the first letter must be B or X and no letter may be repeated? b. if repeats are allowed (but the first letter is B or X)? G. How many of the 7-letter words (starting with B or X) with no repeats end in S? ..... If the first letter must be B or X, and all the letters in the word must be different, then there are 7-letter words. a. b. If the first letter must be B or X, and letters can be repeated, then there are 7-letter words. c. If the first letter must be B or X, and the last letter must be S and all the letters in the word must be different, then there are 7-letter words.
How many different 7-letter words can be made a. if the first letter must be B or X and no letter may be repeated? b. if repeats are allowed (but the first letter is B or X)? G. How many of the 7-letter words (starting with B or X) with no repeats end in S? ..... If the first letter must be B or X, and all the letters in the word must be different, then there are 7-letter words. a. b. If the first letter must be B or X, and letters can be repeated, then there are 7-letter words. c. If the first letter must be B or X, and the last letter must be S and all the letters in the word must be different, then there are 7-letter words.
Chapter8: Sequences, Series,and Probability
Section8.6: Counting Principles
Problem 8ECP: In how many different ways can two letters be chosen from the letters A, B, C, D, E, F, and G? (The...
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Transcribed Image Text:How many different 7-letter words can be made
if the first letter must be B or X and no letter may be repeated?
b. if repeats are allowed (but the first letter is B or X)?
c. How many of the 7-letter words (starting with B or X) with no repeats end
in S?
a.
If the first letter must be B or X, and all the letters in the word must be different, then there are
7-letter words.
a.
b. If the first letter must be B or X, and letters can be repeated, then there are
7-letter words.
CG. If the first letter must be B or X, and the last letter must be S and all the letters in the word must be different, then there are
7-letter words.
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