How do i find the product of (x + 3)^2

On a architect's drawing of a house, 1 inche representa 1.5

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.

‼️‼️‼️10 points‼️‼️‼️ me it’s important‼️‼️‼️‼️‼️