A teetotum is a spinning top that has an equal probability of landing on each side. The expected value of one spin of a 12-sided teetotum (labeled with the numbers from 1 to 12) is 6.5.

answer would be 8.64 or s = 11π/4 inches

step-by-step explanation:

s = r θ  

where s = arc length  

r = radius = 3 inches  

θ = central angle in radians = ( π /180)*165  

s = 3(π/180)*165  

= 8.64 inches

the answer is 8.64

step-by-step explanation:

combine all like terms then its just a 2 step equation