Replacement times for Maytag washer and dryer sets are normally distributed with a mean of 6.5 years and a standard deviation of 1.4 years.

find the replacement time ( in years) that seperates the top 17 percent from the bottom 83 percent.

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.