a.

The period of the function is 4π minutes and the seat will be at a height of 20 meters at t = π minutes.

b.

The period of the function is 4 minutes and the seat will be at a height of 20 meters at t = 1 minute.

c.

The period of the function is 2 minutes and the seat will be at a height of 20 meters at t = 1 minute.

d.

The period of the function is 2 minutes and the seat will be at a height of 20 meters at t = 0.5 minute.

e.

The period of the function is 2π minutes and the seat will be at a height of 20 meters at t = π/2 minutes.

Answer:

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Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur id consequat justo. Cras pellentesque urna ante, eget gravida quam pretium ut. Praesent aliquam nibh faucibus ligula placerat, eget pulvinar velit gravida. Nam sollicitudin pretium elit a feugiat. Vestibulum pharetra, sem quis tempor volutpat, magna diam tincidunt enim, in ullamcorper tellus nibh vitae turpis. In egestas convallis ultrices.

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