Think of the two pieces together as a single cone of height 19, and its volume.
Then think of only the upper piece as a cone, and find its volume.
The volume of the frustum is the total volume minus the volume of the upper piece.
The volume of a cone is:

Total volume:

Volume of upper cone:

Volume of frustum:
Answer:
14491.060542
Step-by-step explanation:
2/5 of 50 is 20. 50-20=30. Making FG=30
-4<x<6 would be the compound inequality