Answer:
Explanation:
You want various log expressions evaluated using the given values of the logarithms.
Rules of logarithms
The applicable rules of logarithms are ...
log(ab) = log(a) +log(b)
log(a/b) = log(a) -log(b)
log(a^b) = b·log(a)
(a) log(xy)
log(xy) = log(x) +log(y) = 3.5 +1.8 = 5.3
(b) log(x/z)
log(x/z) = log(x) -log(z) = 3.5 -1.1 = 2.4
(c) log(√y)
log(√y) = log(y^(1/2)) = 1/2·log(y) = 1/2·1.8 = 0.9