Solve the following system of equations using substitution. 3m + 4n = - 12
n = - m - 2
A. m = -4, n = 2 O B. m = 4, n= -6
C. m = -8, n = 6 O D. m = 3, n = 1

the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

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

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