November 26, 2015

Homework Help: algebra

Posted by Kate on Friday, January 8, 2010 at 10:45am.

The Political Noise Problem. The amount of background
noise is important to television news reporters.
One station developed the formula N = -r^ + 12t + 54
showing the noise level in decibels (N) as it relates to the
time after the speaker stops talking in seconds (t). How
many seconds after the speaker stops will the noise level
be the greatest? Write and tell how you decided.

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