Line q passes through (-5,5) and is parallel to the line 2x + y + 1 = 0.
The slope of line q is
1.

-2

Step-by-step explanation:

Equation of the line 2x + y + 1 = 0 in slope intercept form is y = -2x - 1 with slope of -2. So, the slope is -2.

21/58.

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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