Which equation represents a population of 250 animals that decreases at an annual rate of 21% ? A. p = 250(1.21) B. p = 250(1.79) C. p= 250(0.79) D. p=250(0.21)

Question

asked Feb 24, 2022 230k views

1 Answer

Wellingr · Answer 1 · 2022-03-02T02:42:15+0000

Answer: Choice C. p = 250(0.79)^t

Work Shown:

p = a*b^t

p = a*(1+r)^t

p = 250*(1+(-0.21))^t

p = 250(0.79)^t

Note that r = -0.21 is negative to indicate we have exponential decay.