Error Analysis A survey of 40 people found that 25 had the same Internet service provider. The survey reported this information as the ratio 25:40. Reports about the survey used the following ratios to describe the results. Which is not an equivalent ratio? What was the error?
5:8 20:32 35:50 45 72

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.