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9630 of them. 10 have all four digits the same and 360 have 3 of one and 1 of another.
It is the number of combinations of four numbers where the number of available digits starts at 10 and reduces by 1 each time.
a decimal in which a digit or group of digits repeats without end
The first occurrence of the digit 0 in the digits of pi is at the 32nd decimal place.
The standard form is a string of digits such that the place value of each digit is ten times that of the digit to its right. It may or may not contain a decimal point.
There are 5000 such strings.
9630 of them. 10 have all four digits the same and 360 have 3 of one and 1 of another.
There are 500000 such numbers.
It is the number of combinations of four numbers where the number of available digits starts at 10 and reduces by 1 each time.
If the lead digit cannot be zero then there are 9 x 9 x 8 x 7 = 4536 combinations. If the lead digit can be zero then there are, 10 x 9 x 8 x 7 = 5040 combination.
a decimal in which a digit or group of digits repeats without end
There are 500 of 3-digit numbers begin with an odd one (100-199, 300-301, 500-599,700-799, and 900-999). In terms of "how many strings of", may filter or expand the above answer.
The first occurrence of the digit 0 in the digits of pi is at the 32nd decimal place.
The standard form is a string of digits such that the place value of each digit is ten times that of the digit to its right. It may or may not contain a decimal point.
It is a repeating decimal.
Only if the final digit, after the decimal point, is zero.
It can be any digit. 1/9 = 0.1111... 2/9 = 0.2222... etc 1.0 = 0.99999.... (odd though that might seem, it is mathematically true.) Or it can be different strings of digits: Division by 7 gives 142857 Division by 13 gives 307692