Answer:
The first one is a function. The other two are not functions.
Step-by-step explanation:
To find this, you use the vertical line test. If the vertical line touches multiple points on the graphed line, it is not a function. If the vertical line only touches the graphed line at one point, it is a function.
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Answer:
Step-by-step explanation:
Yes it is correct
Answer
3.07, 3.1, 3 1/8, 3 1/10
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The arc length of AB is 8 m (app.)
Explanation:
Given that the radius of the circle is 8 m.
The central angle is 60°
We need to determine the arc length of AB
The arc length of AB can be determined using the formula,

Substituting central angle = 60° and circumference = 2πr in the above formula, we get,

Simplifying the terms, we get,

Dividing, we get,

Hence, the arc length is approximately equal to 8.
Therefore, the arc length of AB is 8 m