Find the area of the circle

Mathematics

2 answers:

tatyana61 [14]3 years ago

6 0

To find area of a circle, you use the formula of Area= π • radius².( We will use 3.14 for π) In this case, your radius is 3. Squaring 3 = 9 (squaring is the number times itself.) Now we have Area = 3.14 • 9. When you enter that in a calculator, you get 28.26.

The area of the circle is 28.26 ft²

navik [9.2K]3 years ago

3 0

Answer:

The answer is 28.26

Step-by-step explanation:

A=pir^2

A=pi(3)^2

A=9pi

A=28.26

Hope this helps :D

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Given r(x) = startfraction 11 over (x minus 4) squared endfraction , which represents a domain restriction on r(x) and the corre

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The domain and inverse of the function

$r(x) = \frac{11}{(x - 4)^2}$ is

Domain = $\mathbb{R} - \{4\}$ ,

$r^{-1}(x) = \pm \sqrt{\frac{11}{x}} + 4$

What is a function?

A function from A to B is a rule that assigns to each element of A a unique element of B. A is called the domain of the function and B is called the codomain of the function.

There are different operations on functions like addition, subtraction, multiplication, division and composition of functions.

The given function is

$r(x) = \frac{11}{(x - 4)^2}$

r(x) is not defined if x - 4 = 0

r(x) is not defined for x = 4

Domain = $\mathbb{R} - \{4\}$ ,

Where $\mathbb{R}$ is the set of all real number