50% of 28 is 14 so 28+14= 42
I think the answer is B.(1.33,1)
but i'm not sure..
There are no solutions to the equation.
Subtracting 3x from both sides gets you -12 = 1 which is never true therefore for any value of x you choose the equations will never equal each other
Using the law of Cosines:
c^2 = 10^2 + 8^2 - 2*10*8*cos(105)
c^2 = 205.41
c = SQRT(205.41)
c = 14.3
The answer is D