How do you write 0.0009231 in scientific notation?

1 Answer
Dec 31, 2015

Answer:

It's #9.231*10^-4#.

Explanation:

Recalling fractions notions, we can rewrite this very number as

#(9.2cancel(.)3cancel(.)1)/(10000cancel(0)cancel(0)cancel(0))# which is the same as #9.231/10^4=9.231*1/10^4#

However, we know that, due to a power rule, that states #a^-n=1/a^n#, so:

#9.231*1/10^4=color(green)(9.231*10^-4)#