The logarithms of;0.016×0.084÷0.48

Answer 1

let x = 0.016×0.084÷0.48
log x = log(0.016×0.084÷0.48)
= log .016 + log .084 - log .48

are you for some strange reason still using tables, if so then ...
= -2 + .20412 + (-2) + .9243 - (-1 + .6812)
= -3 + .44722
x = 10^-3 x 10^.44722
= 10^-3 x 2.8004
= .0028004

using logs on my calculator:
log x = -1.7959 + (-1.07572) - (-.31876)
= -2.55284
x = 10^-2.5584 = .0028

actual answer just multiplying the numbers
= .0028