Question 671271

{{{(4*10^4)(7*10^-6)}}}


={{{(4*10^4)(7*(1/10^6))}}}


={{{(4*10^4)(7/10^6)}}}


={{{(28*cross(10^4))/10^cross(6)^2}}}


={{{28/10^2}}}


={{{28/100}}}


={{{0.28}}}




{{{(2*10^-4)/(8*10^-9)}}}



={{{(2*(1/10^4))/(8*(1/10^9))}}}



={{{(2/10^4)/(8/10^9)}}}



={{{(2*10^9)/(8*10^4)}}}


={{{(cross(2)*10^cross(9)5)/(cross(8)4*cross(10^4))}}}


={{{10^5/4}}}


={{{25000}}}