Use the following matrices, A, B, C and D to perform each operation,
n . 1-2 3
4
3
4
-1
AB
B.
3C
CD
24 + 3B

Which fraction below is equivalent to 10/12?

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

What is the probability of throwing several dice with sum equal to 6 (six)? show the ways of possibilities for sum 6 (as the numerator) and the ways of throwing n dices for n = 1, 2, 3, 4 or 5 as denominator for all the questions to earn full credits. (a)throw one die, (b) throw two dice, (c) throw three dice (d) throw 4 dice, (e) throw 5 dice