Sound intensity http://webwork1.math.utah.edu/webwor...f4c6516231.png is measured by the decibel scale where http://webwork1.math.utah.edu/webwor...1aa7ae6121.png is a reference intensity. Thus adding 10 decibels to http://webwork1.math.utah.edu/webwor...384432cea1.png multiplies http://webwork1.math.utah.edu/webwor...f4c6516231.png with 10. Adding 3 decibels multiplies http://webwork1.math.utah.edu/webwor...f4c6516231.png with _______???