Jamie used a microscope to measure the diameter of a hair. She found that the diameter of
the hair was 0.000072 meter. How is this number written in scientific notation?
A 7.2 × 10^-5
B 7.2 × 10^6
C 7.2 × 10^5
D 7.2 × 10^-6
the hair was 0.000072 meter. How is this number written in scientific notation?
A 7.2 × 10^-5
B 7.2 × 10^6
C 7.2 × 10^5
D 7.2 × 10^-6
