30-3x3/3+8(2) can someone give me an explanation for how they got the answer?

43

Step-by-step explanation:

Order of Operations first

30 - 9 / 3 + 8 x 2

30 - 3 + 16

27+16

43

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