Question

(1.9*10^-3)(2*10^4)
Solve and show your work

Answer 1

`(1.9\cdot10^(-3))(2\cdot10^4)=(1.9\cdot2)(10^(-3)\cdot10^4)=3.8\cdot10^(-3+4)\\\\=3.8\cdot10^1=3.8\cdot10=38\\\\Used:\\\\\text{commutative and associative property}\\\\a^n\cdot a^m=a^(n+m)`