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VanBrocklin4706
VanBrocklin4706
13.04.2020 • 
Mathematics

Aditya's dog routinely eats Aditya's leftovers, which vary seasonally. As a result, his weight fluctuates
throughout the year.
The dog's weight W(t) (in kg) as a function of time t (in days) over the course of a year can be modeled by
a sinusoidal expression of the form a.cos(b.t) + d.
Att = 0, the start of the year, he is at his maximum weight of 9.1 kg. One-quarter of the year later, when
t = 91.25, he is at his average weight of 8.2 kg.
Find W(t).
t should be in radians.
W(t) =

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