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yangyang7
30.06.2019 •
Mathematics
Afarmer wants to build a new grain silo. the shape of the silo is to be a cylinder with a hemisphere on the top, where the radius of the hemisphere is to be the same length as the radius of the base of the cylinder. the farmer would like the height of the silo’s cylinder portion to be 4 times the diameter of the base of the cylinder. what should the radius of the silo be if the silo is to hold 35,500pie cubic feet of grain?
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Ответ:
The radius of the silo should be![16\ ft](/tpl/images/0034/5674/a78ed.png)
Step-by-step explanation:
we know that
The volume of the grain silo is equal to the volume of the cylinder plus the volume of a hemisphere
we have
substitute the values and solve for r
Simplify
Ответ:
if you combine 4 and 7 it out rules 9