0

If $0.01$ is $10$ to the negative 2nd power then what is $0.2$?

I am having trouble making all the test tubes a number that can be added together.

Test tube A is $.01 = 10$ to the negative 2nd power

Test tube B is $.1 = 10$ to the negative 1st power

Test tube C is $.2= $?

Vladhagen
  • 4,878
kody
  • 1

1 Answers1

0

You need to use logarithms. $$\log_{10}(0.2)=-\log_{10}(5) \approx -0.69897$$

so $$0.2 \approx 10^{-0.69897}.$$

Henry
  • 157,058