4- Matthias
5-8
6- 13 microprocessors
7- No, the poster wouldn't fit
8- 0.2m
9-Yes
10-No
Explanation:
6- (3 .5)^2 in = 12.25 in^2
12.25 / 49 / 54= about 13 microprocessors
7- if you multiply 40*30 you get 1200
if you multiply 36*36 you get 1296
8- The edge length of the unit cube is 0.512 which is 0.8m
the edge length of the new cube is the root of 1 which is 1m
so you would subtract 1-0.8 and that will give you 0.2 m.
9- cube root for 729 wouldn't be an integer, so it can't be a perfect cube or square. 36 would be an exponent expression of 729.
10- the roots of 1 and -1 are equal, but not the roots of 0, the roots of 0 are 0.