What transformation has changed the parent function f(x) = log3x to its new appearance shown in the graph below?

a. 2 · f(x)
b. -2 · f(x)
c. f(x) -2
d. f(x) +2

On a piece of paper graph f(x)=5•(0.4)^x

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

For the equations below which statement is true ?