X1 2 3 4 5 y 3 6 9 12 15 given the table, write an expression for the function, and describe what it does. a) y = 2x. y is double x. b) y = 3x. y is triple x. c) y = 2x+1. y is twice x plus 1. d) y = 2x-1. y is twice x minus 1.

The correct answer is A

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