For which system of equations is (2, 2) a solution? a. –3x + 3y = 0 x + 6y = 10 b. –2x + 5y = –6 4x – 2y = 4 c. 5x – 2y = –6 3x – 4y = 2 d. 2x + 3y = 10 4x + 5y = 18

d. vertex

step-by-step explanation:

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