Question

Write

each number in scientific notation.


a) 12,340,000 





b) 0.00057 

Answer 1

`1\underbrace{2340000}_(\leftarrow7)=1.2340000\cdot10^7=1.234\cdot10^7\\\\\\0.\underbrace{0005}_(4\to)7=5.7\cdot10^(-4)`

Answer 2

a) move the decimal 7 places to the left: 1.234 x 10^7

b) move the decimal 4 places to the right: 5.7 x 10^-4

Hope this helps!!