PLZ HELP I HAVE NO CLUE WHAT TO DO

If you're wanting to know the surface area of the cylinder, then"

surface area=1074.41 in^2

Step-by-step explanation:

area of one end=pi(r^2)=3.14(9^2)=254.47

two ends=254.47(2)=508.94

vertical side=pi(2r)(height)=3.14(18)(10)=565.47

565.47+508.94=1074.41

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

y=x+9

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step-by-step explanation: