Posted by **Ana** on Monday, March 1, 2010 at 9:03pm.

Can someone help me? I'm really confused.

The loudness L of a sound in decibels is given by L= 10log(base10)R, where R is the sound's relative intensity. If the intensity of a certain sound is tripled, by how many decibels does the sound increase?

- Algebra 2 -
**Reiny**, Monday, March 1, 2010 at 9:06pm
evaluate

L = 10log (3R)

= 10log3 + 10logR

= 4.77 + l0log R

so ....

- Algebra 2 -
**Ana**, Monday, March 1, 2010 at 9:08pm
oh, thanks

- Algebra 2 -
**Ana**, Monday, March 1, 2010 at 9:13pm
wait, where'd the 4.77 come from?

- Algebra 2 -
**TiMMMM**, Thursday, March 31, 2011 at 7:23pm
can u do the rest of the work??

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