#please help if possible

20 messages · Page 1 of 1 (latest)

jovial cosmos
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The height in feet of a rider on a Ferris wheel can be modeled by the function
y = -30 cos to a) + 32, where xis the number of seconds into the ride.
How many seconds does it take the Ferris wheel to make one complete revolution?
(Just type in the numerical answer, no label.)

coral yarrow
jovial cosmos
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I just copied it from images the first time

coral yarrow
jovial cosmos
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No clue

coral yarrow
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...do you know what "period" means in this context at all?

jovial cosmos
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I can find the period on a sinusoid graph but that’s about the extent of my knowledge

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I’m not good at math

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At all

coral yarrow
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...okay. y = cos(x) is a sinusoid graph. What's the period?

jovial cosmos
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I don’t know how to do that without looking at a graph specifically

coral yarrow
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How many radians are in a circle?

jovial cosmos
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I don’t know what a radian is either

coral yarrow
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Okay, you definitely should know that.

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Like, that's something that this question specifically is using.

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Meaning it's something you should've been taught already.

jovial cosmos
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Yeah I should know a lot of things

coral yarrow
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Two pi. The period of cosine is two pi.

jovial cosmos
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Oh ok