If 4x + 5 = 17, then x = 3

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

What is x3+3x2−16x−48 divided by x−1?

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.