Answer/Step-by-step explanation:
1. Sin A = opp/hyp
Opp = 3
Hyp = 5
(substitution)

2. Sin B = opp/hyp
Opp = 4
Hyp = 5
(substitution)

3. Cos Q = adjacent/hypotenuse
Adjacent = 12
Hypotenuse = 13
(substitution)
(4 decimal places)
4. Cos S = adjacent/hypotenuse
Adjacent = 5
Hypotenuse = 13
(substitution)
(4 decimal places)
To find the probability you must multiply the probability of rolling doubles by itself 3 times.
to roll a double of any number you have to have the same number on a six-sided die that can be represented as 1/6 times 1/6 = 1/36 chance per roll

there is a 1 in 46656 chance in rolling doubles 3 times in a row.