Question

Valeria is playing with her accordion. The length of the accordion A(t) (in cm), after she starts playing as a function of time t (in seconds) can be modeled by a sinusoidal expression of the form A(t) =a⋅cos (b⋅t) +d. At t=0, when she starts playing, the accordion is 15 cm long, which is the shortest it gets. 1.5 seconds later the accordion is at its average length of 21 cm. Find A(t)

Answer 1

Answer:

Mark as brainlist

Answer 2

Answer:

idk

Step-by-step explanation:

nope

i dont

know

something

went

wrong

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