PLEASE I NEED HELP THIS WAS DUE LAST WEEK I WILL MARK

2

Step-by-step explanation:

so you start at 5 right

then you subtract 7 from 5, or in the case of the number line, move 7 lines to the left

then, when you subtract a negative, you actually add the number

so when it says -(-4) it actually goes +4, so you move 4 lines to the right

that places you on the line that says 2

so the answer is 2

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