Question

A company with loud machinery needs to cut its sound intensity to 44% of its original level. By how many decibels would the loudness be reduced? Use the formula L=10log I/I(o). Round to the nearest hundredth.

A) 3.57 decibels
B) 1.58 decibels
C) 2.52 decibels
D) 1.93 decibels

Answer 1

c.2.52 is your answer

Answer 2

1) log_8a-log_82

2) 2.089

3) 3.57 decibels

4) 0.82

5) 41.67

6) In x^2/c^5

7) 21,405 mowers