Can someone please help me with this!!!

asked Jul 24, 2023 123k views

25 votes

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5 votes

Answer: D

Explanation:

We know the midline is at y=40, so eliminate A and B.

The period is 160, so
$(2\pi)/(b)=160\\\2pi =160b\\b=(\pi)/(80)$

This eliminates option C, leaving us with D.

Julien Vaslet answered Jul 29, 2023

4.5k points

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