Saturday

October 25, 2014

October 25, 2014

Posted by **akash** on Saturday, May 4, 2013 at 2:35pm.

R = 700x − 0.1^x2.

(a) Use differentials to approximate the change in revenue as the sales increase from 2900 units to 3000 units.

dR = $

(b) Compare this with the actual change in revenue.

ΔR = $

- math calculus -
**bobpursley**, Saturday, May 4, 2013 at 2:42pmdR=700dx-.2x dx=dx(700-.2x)

put in dx as 100, x as 2900

a. I get 100(700-.2*2900=12000

b. actual change:

R(2900)=1189000

R(3000)=1200000

dR=11000

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