SOLUTION: Suppose n>1. An n-digit number is a list of n digits where the first digit in the list is NOT zero.
a) How many n-digit number are there?
b) How many n-digit numbers contain no
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a) How many n-digit number are there?
b) How many n-digit numbers contain no
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Question 304514: Suppose n>1. An n-digit number is a list of n digits where the first digit in the list is NOT zero.
a) How many n-digit number are there?
b) How many n-digit numbers contain no zeroes?
c) How many n-digit numbers contain at least one zero
hint: Use a) and b) Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Suppose n>1. An n-digit number is a list of n digits where the first digit in the list is NOT zero.
a) How many n-digit number are there?
Ans: 9*10^(n-1)
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b) How many n-digit numbers contain no zeroes?
Ans: 9^(n)
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c) How many n-digit numbers contain at least one zero
hint: Use a) and b)
Ans: 9*10^(n-10 - 9^(n)
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Cheers,
Stan H.
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