Question

Trommers a and mare shown as they appear in scientific notation on a scientific calculator display 1.2.12 Which expression represents the quotient of - written in scientific notation? (5x100 D Sx100

Answer 1

n = 1.2 E 12

m = 2.4 E14

$\frac{n}{m}=\frac{1.2\times10^{12}}{2.4\times10^{14}}$$=\frac{1.2}{2.4}\times10^{12-14}$$=\frac{1.2}{2.4}\times10^{-2}$$=0.5\times10^{-2}$$=5\times10^{-3}$