2 circles and for the part in the middle if you look at it as a net it
will be a rectangle just rolled up. That is called a lateral surface or a
lateral face
The answer would be f-1(x)=x^2-3
Hope it helps
Answer:

Step-by-step explanation:
Density is defined as mass of an object divided by its volume.
#We calculate the volume of the cylinder:

Given the mass= 15.3kg and volume as above, we calculate density as:

Hence, the solid's density is 
Answer:
waja
Step-by-step explanation: