A 50 gram sample of a substance that's
used to treat thyroid disorders has a k-
value of 0.1133
N = Noe
TE
No = initial mass (at time t =
N = mass at timet
k = a positive constant that depends on
the substance itself and on the units
used to measure time
t = time, in days

Look it up just thought of this

i believe the correct answer is b.

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