The marginal cost of manufacturing x yards of a certain fabric is C'(x)=3-0.01x+0.000006x^2 ( in dollars per yard ). Find the increase in cost if the production level is raised from 500 yards to 5000 yards.

and

fnInt((x^3 +3 + 1/(x^2+1))dx)

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- Jun 11th 2007, 05:49 PMsw3etazngyrlIntegrals
The marginal cost of manufacturing x yards of a certain fabric is C'(x)=3-0.01x+0.000006x^2 ( in dollars per yard ). Find the increase in cost if the production level is raised from 500 yards to 5000 yards.

and

fnInt((x^3 +3 + 1/(x^2+1))dx) - Jun 11th 2007, 06:02 PMJhevon
I suppose for this one you want:

that is not a hard function to integrate. just use the power rule. unless you should be calculating something else. the only place i encountered things like "marginal cost" and such was in a microeconomics class, and we never used calculus at all, so i'm not sure how to relate everything

Quote:

and

fnInt((x^3 +3 + 1/(x^2+1))dx)

- Jun 11th 2007, 06:17 PMsw3etazngyrl
fnInt means integral

- Jun 11th 2007, 06:22 PMJhevon