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Can someone please help me with this!!!

Can Someone Please Help Me With This class=

Sagot :

Medunno13idn

Answer: D

Step-by-step explanation:

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

The period is 160, so [tex]\frac{2\pi}{b}=160\\\2pi =160b\\b=\frac{\pi}{80}[/tex]

This eliminates option C, leaving us with D.

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