are there using all 10 digits
2006-08-22 09:53:05 · 6 answers · asked by normkeefer 2 in Science & Mathematics ➔ Mathematics
There are a combination of 10,000 different combinations.
10 choices for the first number
10 choices for the second number
10 for the third
10 choices for the 4th
Another way to look at it is this: 0-9999. There are 10,000 different numbers there.
2006-08-22 10:06:11 · answer #1 · answered by Anonymous · 7⤊ 3⤋
4 Digit Number Combinations
2016-12-11 09:12:19 · answer #2 · answered by ? 3 · 0⤊ 0⤋
How Many Combinations With 4 Numbers
2016-10-06 13:42:51 · answer #3 · answered by Erika 4 · 0⤊ 0⤋
Hmmmm... define a four-digit number.
If the first four-digit number is 1000, then there are 9000 possible four-digit numbers.
If you're considering something like an ATM code (where zero is allowed as a first digit), then there are 10000 possibilities.
2006-08-22 10:29:20 · answer #4 · answered by Anonymous · 4⤊ 1⤋
10,000 combinations of four digit numbers.
starting from 1000 - 1 combition.
1001to 9999- 9999 combitions.
So, total 10000 combitions.
2006-08-23 02:12:13 · answer #5 · answered by Anonymous · 3⤊ 0⤋
Your question is "how many combinations" . We must be very clear with the words. Combinations is technical word in Math.
Combinations are subsets of a set.
The numbers of combinations is C(10,4) = 10!/(4!6!)
This is: 10.9.8.7.6.5.4.3.2.1/(4.3.2.1.6.5.4.3.2.1) and simplifying we get: 210
You you want to know the number of arrangements(not combinations) the solution is P(10,4) = 10!/6!
In all case above were considered that the digit are different in each group. If it is permitted to have 3344 then we will get others results.
2006-08-22 11:52:28 · answer #6 · answered by vahucel 6 · 4⤊ 3⤋
10000
2016-03-07 05:08:51 · answer #7 · answered by Anonymous · 0⤊ 0⤋
9000. 9 * 10 * 10 * 10
2006-08-22 10:02:13 · answer #8 · answered by CSUFGrad2006 5 · 3⤊ 6⤋
8025
2014-07-29 20:47:26 · answer #9 · answered by ? 1 · 0⤊ 2⤋
1234
4321
1324
3241
5462
5678
9087
0987
1789
1276
1237
1675
1546
1456
5246
0656
2345
6743
5623
2783
2736
2343
1232
2351
2453
6432
7654
2341
2416
4325
2146
7543
8654
3457
3421
9083
wait none cuz 10 doesn't equal 4
2006-08-22 10:55:31 · answer #10 · answered by ConFuZzled? 3 · 1⤊ 13⤋