Which phrases describe radioactive elements? Check all that apply.

A) occur in nature
B) decay at a constant rate
C) have a consistent number of particles
D) have a half-life that determines their rate of decay
E) release energy and particles to maintain radioactivity

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.