Let f={(1,2),(2,3),(5,6),(7,8) evaluate f(2)and f(5)?
1 answer:
Given:
To find:
The values of f(2) and f(5).
Solution:
If an ordered pair is in the function
, then
.
In the given set of ordered pairs one ordered pair is (2,3). So, by using the above definition, we get
In the given set of ordered pairs one ordered pair is (5,6). So, by using the above definition, we get
Therefore, the value of f(2) is 3 and the value of f(5) is 6.
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Area of the circle is the area covered by that circle. The area of the circle whose circumference is 7π m is 12.25π m².
<h3>What is the area of a circle?</h3>The area of the circle is the area covered by that circle. It is given by the formula,
where r is the radius of the circle.
As it is given that the circumference of a circle is 7π m. Therefore, the radius of the circle can be written as,
Now, we know the formula of the area of a circle, therefore, the area of the circle can be written as,
Hence, the area of the circle whose circumference is 7π m is 12.25π m².
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