Which is a factor of 6x2 + x − 7? x + 1 2x + 1 6x + 7 3x + 7
1 answer:
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Using the Fundamental Counting Theorem, the number of possible telephone numbers is given by:
a) 900,000.
b) 78,125.
c) 10,000.
<h3>What is the Fundamental Counting Theorem?</h3>It is a theorem that states that if there are n things, each with ways to be done, each thing independent of the other, the number of ways they can be done is:
For item a, a multiple of 100 means that the last two digits are 00, hence the parameters are:
Hence the number is:
N = 9 x 10^5 = 900,000.
For item b, odd digits are 1, 3, 5, 7 and 9, hence the parameters are:
Hence the number is:
N = 5^7 = 78,125.
For item c, if the first 3 digits are 277, the parameters are:
Hence the number is:
N = 10^4 = 10,000.
More can be learned about the Fundamental Counting Theorem at brainly.com/question/24314866
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