a new online challenge is gaining popularity in a college at time T days after the challenge begins there are C(T) participants who have joined where C(T)=40T-T^2 at what rate is the number of participants increasing when T=2
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Adi S.
Consider the following problem: The number of people in Bernardo's social network is increasing at a rate of r(t) = -2(t - 3)^2 + 23 people per month (where t is the time in months since Bernardo set up the network). At time t = 4 months, Bernardo had 80 people in his social network. How many people were in Bernardo's social network at the end of the 6th month? Which expression can we use to solve the problem? Choose 1 answer: (A) ∫₀⁶ r(t) dt (B) ∫₄⁶ r(t) dt (C) 80 + ∫₄⁶ r(t) dt (D) r(6)
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