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What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

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.