Question

(4.0 x 10^3)(5.0 x 10^5)

Answer 1

`\begin{gathered} \text{Given} \\ \mleft(4.0*10^3\mright)\mleft(5.0*10^5\mright) \end{gathered}`
`\begin{gathered} \text{By commutative property of multiplication} \\ (4.0*10^3)(5.0*10^5) \\ =(4.0*5.0)(10^3*10^5) \\ =(20.0)(10^8) \\ =2.0*10^9 \\ \\ \text{Therefore,} \\ (4.0*10^3)(5.0*10^5)=2.0*10^9 \end{gathered}`