Infinitely many.
Start with additions:
1 + 12, 2 + 11, etc
Then look at numbers with one decimal point:
0.1 + 12.9, 0.2 + 12.8, etc
and then 2 decimal places, 3 dp, 4 dp and so on.
Next, look at combinations of three number, four numbers etc.
And that is only addition. Addition combined with subtraction offers a lot more possibilities.
And then there are multiplication, division, exponentiation and so on.
13
none, because 13 is a prime number.
There are an infinite number of combinations for A, B, and C in this case. Just assign any number for A and for B, then calculate the value for C.There are an infinite number of combinations for A, B, and C in this case. Just assign any number for A and for B, then calculate the value for C.There are an infinite number of combinations for A, B, and C in this case. Just assign any number for A and for B, then calculate the value for C.There are an infinite number of combinations for A, B, and C in this case. Just assign any number for A and for B, then calculate the value for C.
Expressed as a mixed number, 5.13 is equal to 5 13/100 or five and thirteen hundredths.
You can have infinitely many mathematical expressions that equal 13. Or any other given number. For example, 13 + 0, 12 + 1, 11 + 2, etc., then 0 + 13, - 1 + 14, -2 + 15, etc. ... there you have infinitely many. You can make up lots of other types of expressions that give the same result.
There are 12,033,222,880 of them.
13
There is only one number that equals 13. That number is . . . . . 13.
There is only one possible combination of a 13 digit number created from 13 digits. In a combination, the order of the digits does not matter so that 123 is the same as 132 or 312 etc. If there are 13 different digits (characters) there is 1 combination of 13 digits 13 combinations of 1 or of 12 digits 78 combinations of 2 or of 11 digits and so on There are 213 - 1 = 8191 in all. If the characters are not all different it is necessary to have more information.
The number 13.
13 neutrons. Atomic number of Mg is 12 equal to the number of protons. So 25-12=13.
positive combinations:14 positive combinations not counting the same one just flipped:7 combinations including negatives: infinate
There are 24C12 = 24*23*...*13/(12*11*...*1) = 2,704,156 combinations.
1 and 11 and 21 and 31 and 42 and 12 and 22 and 32 and 43 and 13 and 23 and 33 and 44 and 14 and 24 and 34 and 416 combinations
Assuming you meant how many combinations can be formed by picking 8 numbers from 56 numbers, we have:(56 * 55 * 54 * 53 * 52 * 51 * 50 * 49)/8! = (7 * 11 * 3 * 53 * 13 * 51 * 25 * 7) = 1420494075 combinations. (Also equal to 57274321104000/40320)
Three possible combinations: 17+1, 13+5 and 7+11.
13