Ra is the roughness of the surface used in engineering. Mu(greek letter)metres is one millionth of a metre. To put in perspective glass would be around Ra 0.1, polished chrome plating would be around Ra 0.3 so Ra 0.8 is still fairly smooth but a dull finish. You would just be able to feel the surface with your fingernail.
42
Yes.
m = 24
M = mass
m = n/(n-1)
4 m
42
m+m when m equals 2. 2+2 4
Yes.
M. Ageyev was born on 1898-08-08.
4!
m = 24
M = mass
m = n/(n-1)
4
When M equals 25, then M divided by 5 is 5. It makes no difference what N is.
in algabreic terms, it is x