Find the sum of 142.3, 0.572 and 47.06

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.

For the feasibility region shown below find the maximum value of the function p=3x+2y

Determine the equivalent system for the given system of equations: 5x − 3y = 6 x + y = 2