Chapter 9.3, Problem 50E

The population of a bacteria growing in a Petri dish is modelled by the function P(t) = 4(2)³ , where P(t) represents the number of bacteria and t represents the time in hours after the initial count. Which statement best represents this situation? Initial Amount Growth Rate (A) 2 quadruples every 3 hours 3 doubles every 3 hours 4 triples every 2 hours doubles every 3 hours A

The population of bears in a national forest is changing according to the function N(t) = 850(0.96)', where t is the time in years and N() is the number of bears. Which statement explains how the bear population is changing? A.O The population is decreasing by 4% per year. B. The population is increasing by 96% per year. c.O The population is decreasing by 96% per year. D.O The population is increasing by 4% per year.

0 1. The trend in iPhones over the past decade shows that the average iPhone depreciates by 53% per year. This can be modeled by the equation V(t) = V₁ (1-0.53)* where t is in years. Manipulate this equation so that it models the value of the average iPhone after w weeks. V(w) Vo(0.47)" O V(w) ∞ V₂ (8.89) " O V(w) V (0.9856) O V(w) * V₁ (0.009)"