What single decimal multiplier would you use to increase by 17% followed by a 15% decrease?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

2/3(-6y+9x) expand each expression using the distributive property

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.