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samanthabutryn
27.11.2019 •
Mathematics
A. diameter, d = 2rd = 2r the formula using function notation is ; the value when r = 5r = 5 is ; the diameter of the circle is feet when the radius is feet. b. area, a = πr2a = πr2 the formula using function notation is ; the value when r = 5r = 5 is ; the area of the circle is feet when the radius is feet. c. circumference c = 2πrc = 2πr the formula using function notation is ; the value when r = 5r = 5 is ; the circumference of the circle is feet when the radius is feet.
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Ответ:
Given : The diameter of the circle = 2r , where r is the radius.
Function notation for diameter :![D(r)=2r](/tpl/images/0392/7338/f60e7.png)
If the value of r= 5 feet
Then , the diameter of the circle is feet = 2(5) feet = 10 feet
Hence, the diameter of the circle is 10 feet when the radius is 5 feet.
Also, area of circle :
, where r is the radius .
Function notation for area :![A(r)=\pi r^2](/tpl/images/0392/7338/7ed4a.png)
For r= 5 feet
Hence, The area of the circle is
square feet when the radius is 5 feet.
Also, the circumference of circle =![2\pi r](/tpl/images/0392/7338/ba846.png)
Function notation for circumference =![C(r)=2\pi r](/tpl/images/0392/7338/35c4c.png)
For r= 5 feet
Hence, The circumference of the circle is
feet when the radius is feet.
Ответ:
Testimony
Explanation:
It is someone other than the speaker’s words.