Find the circumference and the area of the circle with diameter 9cm
use vale 3.14 to with answer
be specific with answers with right symbol cm, cm2 ,or cm3

Circumference is 28.26cm

Area is 14.13cm^2

Step-by-step explanation:

9×3.14=28.26

9÷2=4.5

4.5×3.14=14.13

i dont know

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