Answer:
A) to find,
[tex](3.7\times10^4)\times(2.7\times10^7)[/tex]we know that,
[tex]a^n\times a^m=a^{n+m}[/tex]we get,
[tex]=3.7\times10^4\times2.7\times10^7[/tex][tex]=3.7\times2.7\times10^{4+7}[/tex][tex]=9.99\times10^{11}[/tex]The scientific notation of the above result is,
[tex]=9.99\times10^{11}[/tex]Answer is:
[tex]=9.99\times10^{11}[/tex]
B) To simplify,
[tex]\frac{45000000}{5000}[/tex][tex]=91000[/tex]The scientific notation of the above result is,
[tex]=9.1\times10^4[/tex]Answer is:
[tex]9.1\times10^4[/tex]