Why would a conservative investor invest in more short term bonds than long term bonds?

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.

He concluded that a heavier object dropped from the same height as a lighter object will land

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?