Apple has posted a notice on its Investor Relations page noting that it will be offering a live audio webcast of CEO Tim Cook’s presentation at the Goldman Sachs Technology and Internet Conference. According to the notice, Cook will speak at approximately 3:30 p.m. Eastern Time/12:30 p.m. Pacific Time. As noted by Mac Rumors, Cook has spoken at the event several times in the past, and while offering occasional insight into Apple’s…