Question

PLEASE HELP!!!!

A decibel 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.

The sound intensity of rustling leaves is 100 times the reference intensity. Use your graph to determine the sound intensity of rustling leaves in decibels. ________decibels

Answer 1

The sound intensity of rustling leaves is 100 times the reference intensity. Use your graph to determine the sound intensity of rustling leaves in decibels.

20

Answer 2

Answer: 20.

Step-by-step explanation:

1) Given function:

`y=10logx`

2) The base of log, not shown, is 10.

3) x is the ratio of the sound intensity to a reference intensity and is told to be 100: x = 100

⇒ y = 10 log (100)

4) log (100) = 2 ⇒ y = 10 (2) = 20 ← answer