7-5: 1 SEE ANSWER

Answer: 7 db

Use the formula: NR = 10 log (A2/A1)

Plug in the values given: NR = 10 log (35.35/7.10)

Solve the equation: NR = 10 log 498 = 10 X 0.697 = 6.97 db = 7 db

1. REDIRECT 7-5 Sound Within An Enclosure