1. determine if the number is written in scientific notation if not explain 5.6x10^12
a no; it is not written as a power of 10
b no; the first factor is not a number between 1 and 10
c yes; the number is written in scientific notation
2. determine if the number 5.1x10^-8 is written in scientific notation if not explain
a yes; the number is written in scientific notation
b no; the first factor is not a number between 1 and 10
c no; it is not written as a number times a power of 10