Four combinations: tam ham mat hat Hope it helps (:!
12
Letters used in math are called variables.
Yes, if the three points are collinear.
His
For the first letter, you can choose any of the four. For the second letter, you can choose any of the remaining three. For the third letter, you can choose either of the remaining two. For the fourth letter, you don't get a choice, you have to use the one that's left. So 4x3x2x1 = 24 possible permutations.
12
Oh, dude, there are like 26 letters in the alphabet, right? So, for each position in a 3-letter combination, you have 26 choices. That means you'd have 26 choices for the first letter, 26 for the second, and 26 for the third. So, the total number of 3-letter combinations would be 26 x 26 x 26, which is... math.
Letters used in math are called variables.
axis
Yes, if the three points are collinear.
bookkeeping
In a mathematial equation the letters wither represent a variable or a constant.
His
95040
For the first letter, you can choose any of the four. For the second letter, you can choose any of the remaining three. For the third letter, you can choose either of the remaining two. For the fourth letter, you don't get a choice, you have to use the one that's left. So 4x3x2x1 = 24 possible permutations.
Math uses letters to indicate that specific numbers are not known or as an abbreviation for certain constant.
nCr=n!/r!/(n-r)!