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Slav-nsk [51]
3 years ago
8

The height, h, in feet of the tip of the hour hand of a wall clock varies from 9 feet to 10 feet. Which of the following equatio

ns can be used to model the height as a function of time, t, in hours? Assume that the time at t = 0 is 12:00 a.m.
A. h=0.5cos(pi/12t)+9.5
B. h=0.5cos(pi/6t)+9.5
C. h=cos(pi/12t)+9
D. h=cos(pi/6t)+9
Mathematics
2 answers:
photoshop1234 [79]3 years ago
4 0
A that should be it ..........

maria [59]3 years ago
3 0
Your answer is A i believe
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Whitepunk [10]

Answer:

<u>13/15 </u>

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Decimal Form: 0.86

Not sure if you would've preferred a step-by-step solution. Sorry! Hope you find this helpful, good luck!

3 0
3 years ago
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3 years ago
To answer that question
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Please help someone
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Answer:

  (-2, ∞)

Step-by-step explanation:

A function is "increasing" when its graph goes up to the right, the slope is positive. At a turning point (maximum or minimum), the function is neither increasing nor decreasing.

<h3>Increasing interval</h3>

The graph has a minimum at x = -2. To the left of that point, the graph goes up to the left, which is the same as down to the right (decreasing).

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The lack of "or equal to" tells you the interval is "open" and is delimited by parentheses in interval notation:

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