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Allisa [31]
3 years ago
11

The position of a paddle on a waterwheel after t seconds is modeled by f(t) = 5.25 cosine (StartFraction pi Over 16 EndFraction

t minus pi). A positive function value indicates the paddle is above the waterline, while a negative value indicates the paddle is below the waterline.
What is the initial position of the paddle?

10.5 ft above the waterline
5.25 ft above the waterline
0 ft at the waterline
5.25 ft below the waterline

Mathematics
2 answers:
Y_Kistochka [10]3 years ago
6 0

Answer:

5.25ft Below the waterline

Step-by-step explanation:

1. So basically I put this equation into a graphing calculator (I use Desmos) and replaced "t" with "x" cuz computers are weird.

2. Then it pops up a graph. We need to know the initial position of the paddle. This means where is the paddle when no time has passed, aka the y-intercept. I look and it's at -5.25, meaning 5.25 below the waterline.

Shtirlitz [24]3 years ago
5 0

Answer:

D

Step-by-step explanation:

edge 2020

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