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tylerkitchen44
18.11.2019 •
Mathematics
The equation of a circle centered at the origin is x2 + y2 = 16. what is the radius of the circle?
a.8
b.16
c.4
d.256
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Ответ:
The radius of circle is 4
Step-by-step explanation:
Given as :
The equation of circle is given as :
x² + y² = 16
Now The standard equation of
( x - h )² + ( y - k )² = r²
where h , k are center of circle
r is the radius of circle
From given circle equation x² + y² = 16 can be written as
( x - 0 )² + ( y - 0 )² = (4)²
So, The center of this circle is ( h , k ) = ( 0 , 0 ) And radius of circle = 4
Hence The radius of circle is 4 Answer
Ответ:
C 4
Step-by-step explanation:
well 4x2 + 4x2 = 16
and radius is 1/2 of diameter so 1/2 of 8 is 4
Ответ:
1/3 + 1/3 + 1/3 = 3/3 = 1
2/3 + 2/3 = 4/3 = 1 1/3
1 + 1 + 1 1/3 + 1/2
2 + 1 1/3 + 1/2
1 1/3 * 3 = 1 2/6
1/2 * 3 = 3/6
= 1 5/6
2 + 1 5/6
3 5/6
Paula can make 3 pictures.