What set of coordinates does not describe a function?

Which of the following is the missing term, a2, of the geometric sequence in which a1=2 and a3=200

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

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.