The total sound power, in decibels, from x objects each producing 50 decibels of sound power is given
by the function f(x) = 50 + 10 log x. Suppose each of
the x objects increases its sound power by 10
decibels, so that the new total sound power, in
decibels, is given by the function g(x) = f(x) + 10.

cant open file sorry!

step-by-step explanation:

answer: it's d

step-by-step explanation:

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)