Question

Which of these numbers is correctly written in scientific notation? 10.5x10⁹ 5x10⁴ 1.234x10¹¹ 1234x10-³

Answer 1

Scientific notation is written in the form;

`a*10^n`

where;

a - is a real number whose absolute value is between 1 and 10.

`1\leq a<10`

And n is the power/ exponent(an integer).

The correct scientific notation from the options that follows the stated rule is;

`1.234*10^(11)`