Can someone me out with this one? ?

11.8

Step-by-step explanation:

Use tangent trignometric ratio to find  distance.

tan x = opposite/adjacent

tan 28 = 6.3/x

x = 11.84867673 or about 11.8

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2