M is the centroid of the triangle.
CM=7, PM=10, & BQ=18
R
RM=[?]

i think it is 70

step-by-step explanation:

don't give

take it once

try and try and you will not

happy to

pls mark as brainliest

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

but which class are u may know that first