92 + x2 = (x + 4)?
*Use the value of x to find the radius

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.

What is the absolute value of the complex number -4-sqrt2i

Find the solution of each of the following.