Question

Was the following number correctly or incorrectly converted from Standard Form to Scientific Notation? 

Standard Form −−> Scientific Notation


 86130600000.0 −−> 86.1306 x 10 −9

Answer 1

Answer: The number was incorrectly converted.

Explanation: The error is in the sign of the power: -9

While $1\cdot10^{-9}=0.000000001$, the power should have been positive 9 because

$1\cdot10^9=1,000,000,000$

So the correct conversion is as follows:

$86130600000.0\rightarrow86.1306\cdot10^9$