Question

I will show you the pic

Answer 1

we have the expression

`(4.8\cdot10^8)/(1.2\cdot10^4)\cdot2.2\cdot10^((-6))`

Solve the quotient first

so

`\begin{gathered} (4.8\cdot10^8)/(1.2\cdot10^4)=(4.8)/(1.2)\cdot10^((8-4)) \\ \\ 4\cdot10^4 \end{gathered}`

substitute in the original expression

`\begin{gathered} 4\cdot10^4\cdot2.2\cdot10^((-6))=(4\cdot2.2)\cdot10^((4-6)) \\ 8.8\cdot10^((-2)) \end{gathered}`

the answer is

8.8x10^-2