Question 877693

let A = {{{((37.9* sqrt(488))/1.28^3)}}}
log A=log{{{((37.9*sqrt(488))/1.28^3)}}}
={{{log(37.9) + (1/2)*log(488) - 3log(1.28)}}}
=1.5786 +(1/2)*2.6884 - 3*0.1072
=1.5786 + 1.3442 - 0.3216
=2.6012

A=antilog2.6012
A=10^(2.6012)
A=399.2

Check it:

{{{(37.9*sqrt(488))/(1.28)^3}}}
={{{837.2384/2.0972}}}
=399.2

and that's how to get'er done!