Which expression represents the volume, in cubic units, of the composite figure?

a) π(103) + π(102)(28)
b) π(203) + π(202)(28)
c) 2π(103) + π(102)(28)
d) 2π(203) + π(202)(28)

we can see that

there are two hemispheres and one cylinder

so, we will find volume of each

and then we combine them

Hemisphere:

we can see that

diameter=20

so, radius =10

now, we can use volume formula

now, we can plug values

Cylinder:

now, we can find volume of cylinder

we can use formula

now, we can plug values

we get

now, we can find total volume

.............Answer

step-by-step explanation: