The acronym for trigs is SOH CAH TOA
Sine means opposite divided by hypotenuse
So, let us find sine.
The opposie side is 16
The hypotenuse is 17.46

Use your calculator
The answer is ≈ 0.9164
The correct answer is c but i am not sure
Since sum indicates addition, you want to add the two terms together.
B + (5x2)
If the answer needs to be simplified, you can do the multiplication to get:
B + 10
This problem is basically


If I plug in n = 16 and r = 9

So there are 4151347200 different nine player batting orders that can be chosen from a baseball team of 16 :)