9. a rectangle has a length 2 ft less than three times its width. what is the area of the rectangle when its
width is 2 ft?
(1 po
cli
08 square ft
o 6 square ft
12 square ft
o 10 square ft

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.