# Marginal Revenue and Instantaneous Rate of Change

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(a) R(x)=13x-0.002x^2

Find marginal revenue when x=3000

(b) H(w)=0.11w^2 - 0.4w +1.43

Find the instantaneous rate of change at w=500

(c)s(t)= t^2+2t-4

Find the instantaneous rate of change at x=2

https://brainmass.com/math/derivatives/marginal-revenue-instantaneous-rate-change-295091

## SOLUTION This solution is **FREE** courtesy of BrainMass!

Please see the attached file

a) Given .

Marginal revenue is given by . Hence marginal revenue when x=3000 is =13-12=1

b) Given . Instantaneous rate of change at w = 500 is =109.6

c) Given . Instantaneous rate of change at t = 2 is = 6

https://brainmass.com/math/derivatives/marginal-revenue-instantaneous-rate-change-295091