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Elanso [62]
4 years ago
7

please help!!!! The graph below shows height as a function of time for a ride on a Ferris wheel. Find a sine equation for the gr

aph.

Mathematics
1 answer:
777dan777 [17]4 years ago
3 0
The easiest way to work this is to note that the a Sine wave is zero when it starts at zero, but this one starts before x=zero.  Its transformation is moved left, so its phase shift is positive.
And that is amplitude is 1/2 of its minimum to maximum value (40) which equals 20.  this says that is shifted upwards by 25.
So B. is the answer.
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Let ????=−5y????+5x????. Use the tangential vector form of Green's Theorem to compute the circulation integral ∫????????⋅???????
denpristay [2]

The value of the required integral is 50π  where C is the positively oriented circle x2+y2=25

We are given a vector F = -yi + xj. A vector is a quantity with magnitude and direction that is commonly represented by a directed line segment, with length representing magnitude and orientation in space representing direction. We need to use the tangential vector form of Green's Theorem to compute the circulation integral ∫CF⋅dr where C is the positively oriented circle x² + y² = 25

Let the value of the integral be represented by the variable "I".

I = ∫∫[(/x)(x) - (/y)(-y)]dA

I = ∫∫[(1 - (-1)]dA

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