An electronic switch has a constant failure rate of 10-3 per hour. a) What is the expected life of the switch? b) What is the standard deviation of the switch? c) What is the probability that the switch will last between 1200 and 1400 hours?

Aline passes through the points (5,4) and (2.1). part a.) what is the slope of the line that passes through these points? show work. part b.) what is the equation of the line that passes through these points. show work. part c.) where does the line intercept on the x& y axis? show work

The hockey team has been great! in 2008 they won 20% more games than in 2007. in 2009 they won 50% more games than in 2008. what was their overall percentage increase from 2007 through 2009?

What is the ordered pair that represents the linear inequality y< 6x-4