Which description does not guarantee that a quadrilateral is a square?

For what values of b will f(x)= logbx be a decreasing function? (16 )

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

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.