Question

how do you know if a number is written in scientific notation?

Answer 1

Typocally it's writeen something like \(10e24\) meaning \(0.18 · 10^{24}\).
They can also be written as the latter.

Answer 2

Typically* written*

Answer 3

actually 0.18 x 10^24 isnt in scientific notation

scientific notation is in the form

\[a \times 10^b\]

a is a number between 1 and 10, b is an exponent...

and example may be

\[2.18 \times 10^3 = 2.18 \times 1000 = 2180\]

hope this helps