LOGARITHMS J4

 

Evaluate the following giving your answer in standard form.

 

348.3 x 10^-4

   4 x 10^-20

 

Solution

 

=  348.3 x 10^-4

         4 x 10^-20

 

=  348.3  x   10^-4

     4           10^-20

 

=  87.075 x 10^-4 –(-20)

 

=  8.7075 X 10¹ x 10^{-4 + 20}    

 

=  8.7075 X 10^{1 + (-4) + 20}    

 

 

=  8.7075 x 10¹⁷   answer 

 

TRY THIS…….   

 

Evaluate the following giving your answer in standard form.

 

878.7 x 10^-9

   5 x 10^-30