Question

if x is an integer, which of the following could be x^3
a) 2.7 x 10^11
b)2.7 x 10^12
c)2.7 x 10^13
d)2.7 x 10^14
e)2.7 x 10^15

Answer 1

can you express any of these numbers as a cube of an integer?

Answer 2

hmm 2.7x10^13=27x10^12=(3x10^4)^3=30000^3 so its c and x=30000