An earring design is shaped like a triangular pyramid. all the faces are equilateral triangles with side lengths of 14 millimeters. the slant height is 12.1 millimeters. what is the surface area of the earring (pls explain how u got the answer)

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.