Simplify the radicals.
someone because my book doesnt explain how to do this.

Step-by-step explanation:

For this exercise it is important to remember the following property:

Then, given the expression:

You can follow these steps in order to simplify it:

1. Descompose 216 into its prime factors:

2. The Product of powers property states that:

Then:

3. Now you can substitute:

4. Finally, substituting and simplifying, you get:

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