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A solid machine part is to be manufactured as shown in the figure. The part is made by cutting a small cone off the top of a larger cone. The small cone has a base radius of 3 inches and a height of 5 inches. The larger cone has a base radius of 9 inches and had a height of 15 inches prior to being cut. What is the volume of the resulting part illustrated in the figure?
A.) 15 cubic inches
B.) 155 cubic inches
C.) 390 cubic inches
D.) 405 cubic inches
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15 cubic inches in cubic solid machine
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