Question

Work out 4 x 10^3 divided by 8 x 10^-5

Give your answer in standard form.

Answer 1

`Use:(a^n)/(a^m)=a^(n-m);\ a\\eq0\\\\(4\cdot10^3):(8\cdot10^(-5))=(4)/(8)\cdot10^(3-(-5))=0.5\cdot10^8=50,000,000`