Loudness decibels (dB), of sound of intensity is defined to be L=10 log 1 1 , where l 0 =10^ -12 W m^ 2 (Watts per meter square is the minimum intensity detectable by the human ear

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?