October 13, 2015

Homework Help: Algebra

Posted by JR on Monday, October 26, 2009 at 10:43pm.

The Political Noise Problem. The amount of background noise is important to television news reporters. One station developed the formula
N = -t2 + 10t + 56
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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