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  3. ? a. b. c. d. e. 1.the amount of charge on a capac

? A. B. C. D. E. 1.The amount of charge on a capacitor in an electric...

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Electrical Engineering

? A. B. C. D. E. 1.The amount of charge on a capacitor in anelectric circuit decreases by 30% each second.

   ?    A    B    C    D    E      2.Polluted water is passed through a series of filters. Each filterremoves all but 30% of the remaining impurities from the water.

   ?    A    B    C    D    E      3.In 1950, the population of a town was 3000 people. Over the courseof the next 50 years, the town grew at a rate of 10% perdecade.

   ?    A    B    C    D    E      4.The percent of a lake's surface covered by algae, initially at 35%,was halved each year since the passage of anti-pollution laws.

   ?    A    B    C    D    E      5.In 1950, the population of a town was 3000 people. Over the courseof the next 50 years, the town grew at a rate of 250 people peryear.


A. ?(?)=?(0.3)?f(x)=B(0.3)x

B. ?(?)=?(2)−?f(x)=A(2)−x

C. ?(?)=?0+??f(x)=P0+rx

D. ?(?)=?(0.7)?f(x)=B(0.7)x

E. ?(?)=?0(1+?)?f(x)=P0(1+r)x

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