Rewrite the difference as a sum of the fractions using the lowest common denominator

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

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.

Write the equation in logarithmic form e^x=403.429