which number is written in scientific notation

Question

a.2 times 10 to the power of -4 

b.0.9 times 10 to the power of 3

c.8 times 5 to the power of 2 

d.10 times 5 to the power of -6

 

Answer 1

Elizabeth,

Scientific notation is a number between 1 and 9 times 10 to a power.  Eliminate your answers that do not have the first number between 1 and 9, then eliminate if the second part is not 10 to a power.  You can do it!

Mary