F(x)<0 over and what other interval? A. (-2.4,-1.1)

B. (-3,-1.1)

C. (-1.1,2)

D. (-1.1,0.9)

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.

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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