Only 1. In a combination the order of the numbers or other characters does not matter. So, the combination 135.6 is the same as the combination 6.153
2 to the 7th power = 128 * * * * * No. That is the total number of combinations, consisting of any number of elements. The number of 2 number combinations is 7*6/2 = 21
You Can Create 999 Number combinations
6 of them.
To convert a number to scientific notation:Put the decimal point after the first non-zero digit;Count how many digits the decimal point has to move to get back to its original position;If the decimal point has to move left make this count negative;Remove trailing zeros;Put the number with the decimal point after the first non-zero digit and without the trailing zeros multiplied by 10 to the power of the count (made negative if necessary).→ 0.000345 litres = 3.45 × 10^-4 litres
Generally, any metric measurement is made in decimal.
The whole point of combinations is that the order of the number (or items) does not matter. Once you specify what the second number is, you are no longer looking at combinations.
If repeats are allowed than an infinite number of combinations is possible.
2 to the 7th power = 128 * * * * * No. That is the total number of combinations, consisting of any number of elements. The number of 2 number combinations is 7*6/2 = 21
4*3*2*1 = 24 different combinations.
You Can Create 999 Number combinations
6 of them.
To convert a number to scientific notation:Put the decimal point after the first non-zero digit;Count how many digits the decimal point has to move to get back to its original position;If the decimal point has to move left make this count negative;Remove trailing zeros;Put the number with the decimal point after the first non-zero digit and without the trailing zeros multiplied by 10 to the power of the count (made negative if necessary).→ 0.000345 litres = 3.45 × 10^-4 litres
How many four digit combinations can be made from the number nine? Example, 1+1+2+5=9.
Decimal
Generally, any metric measurement is made in decimal.
8C6 = 28
9!/5! or 3024