Question

 Express the following numbers in what seems to you the most logical form for future calculations:

a. 15,000 b. 0.03000

c. 7,400,000 d. 0.0000068

e. 0.00040200 f. 0.0000000002

Answer 1

$a) \space 1.5\times 10^4\newline b) \space 3\times10^{-2}\newline c)\space7.4\times10^6\newline d) 6.8\times10^{-6}\newline e) 4.02\times10^{-4}\newline f) 2\times10^{10}$