Answer:
(x-1)^2 + y^2 = 25
Step-by-step explanation:
center C ( ( xA + xB)/2 , (yA+yB)/2 ) = ( 1 , 0)
AB = 10
radius = AB / 2 = 5
equation formula: (x - xC)^2 + (y-yC)^2 = radius^2
Hence:
(x-1)^2 + y^2 = 25
Answer:
About 72%
Step-by-step explanation:
All you have to do is divide the number of children who traveled in third class (79) by the total number of children (109)
79/109=.724770642 OR 72%
Answer:
i did and it was the best thing ive ever done
Step-by-step explanation:
The picture in the attached figure
we know that
area of a sector=(∅/2)*r²--------> when ∅<span> is in radians
</span>
area of sector inner circle=(∅/2)*r²
area of sector outer circle=(∅/2)*R²-(∅/2)*r²
<span>The ratio of the area of the sector removed from the outer circle to the area of the sector removed from the inner circle is
</span>[(∅/2)*R²-(∅/2)*r²]/[(∅/2)*r²]-----> [R²-r²]/[r²]
therefore
the answer is<span>
(R^2 - r^2)/r^2</span>