Answer:
I think it is C.
Step-by-step explanation:
Have a good day. :-)
Answer is #3
add up all the x’s
Not sure sorry edit : oh sorry I was suppose to add this in the comment section
So ive done the math and if you add both mA & mB , mC would equal 10
Answer: 
Step-by-step explanation:
For this exercise you need to use the Inverse Trigonometric function arcsine, which is defined as the inverse function of the sine.
Then, to find an angle α, this is:

In this case, you can identify that:

Then, substituting values into
and evaluating, you get that the measure of the angle "C" to the nearest degree, is:
