Posted by M.Shugarts on September 29, 2002 at 16:20:41:
I'm in great need of some help. It's a word problem
11. The gross national product (GNP) of a certain country is N(t)= t^2+3t+121 billion dollars t years after 1990. At what percentage rate will the GNP be changing with respect to thime in 1995?
and
12) If the total cost of manufacturing q units of a certain commodity is C(q)= (3q+1)(5q+7), use marginal analysis to estimate the cost of producting the 19th unit.
and
Find the derivative if Y= (3x^5-7x+5)(x^3+x-a)
and help would be appreciated.