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Earn +20 ptsQ: How many strings of three decimal digits begin with an odd digit?
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How many strings of four decimal digits contain each digit at most twice?
9630 of them. 10 have all four digits the same and 360 have 3 of one and 1 of another.
A decimal number in which a digit or group of digits repeats without end?
a decimal in which a digit or group of digits repeats without end
Where is the first 0 in the digits of pi found?
The first occurrence of the digit 0 in the digits of pi is at the 32nd decimal place.
What is a decimal in which a digit or a group of digits repeats without end?
It is a repeating decimal.
What rule must be used to find the number of strings of four decimal digits that do not contain the same digit twice?
It is the number of combinations of four numbers where the number of available digits starts at 10 and reduces by 1 each time.
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