Ahollow crystal ball is made of glass that is 3 cm thick. the ball has a radius to the outside surface of 8 cm. what is the approximate volume of glass used to make the ball? use 3.14 to approximate pi. a 113.0 cm³ b 523.3 cm³ c 1620.2 cm³ d 2143.6 cm³

1620.2

Sorry if I'm late The correct answer is 1620.2

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The Correct Answer is 523.3 cm^3

Step-by-step explanation:

A hollow crystal ball is made of glass that is 3 cm thick. The ball has a radius to the OUTSIDE surface of 8 cm, so 8 - 3 = 5.

v = 4/3 pi (5)^3

v = 4/3 pi (125)

v = 523.3333333

The volume of the hollow 3 cm thick crystal ball is approximately 523.3 cm^3

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