February 26, 2017

Homework Help: algebra

Posted by ann on Friday, December 16, 2011 at 7:36am.

I posted this question earlier but I think I asked for too much so I am trying again and giving the answer I have, If you could tell me if it is correct, I would appreciate it.
A sub is 7500 meters below sea level surfaces at rate of 80 meters per min. the depth of sub after m minutes is given by d(m) = -7500 +80m. give range and calculate domain.
80m = -7500
M = 90.3 domain
d = 80(0) -7500 = -7500 range
thanks for your help

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