The standard form for the equation of a circle is :
<span><span> (x−h)^2</span>+<span>(y−k)^2</span>=r2</span><span> ----------- EQ(1)
</span> where handk are the x and y coordinates of the center of the circle and r<span> is the radius.
</span> The center of the circle is the midpoint of the diameter.
So the midpoint of the diameter with endpoints at (2,-5)and(8,-9) is :
((2+(8))/2,(-5+(-9))/2)=(5,-7)
So the point (5,-7) is the center of the circle.
Now, use the distance formula to find the radius of the circle:
r^2=(2−(5))^2+(-5−(-7))^2=9+4=13
⇒r=√13
Subtituting h=5, k=-7 and r=√13 into EQ(1) gives :
(x-5)^2+(y+7)^2=13
The correct answer is d) The maximum number of footballs the team can purchase is 44.
this is true because if we plug 44 into the equation it is the only value that is can fit into the equation without it becoming false.
975 + 34(44) ≤ 2500
2471 ≤ 2500
Answer:y=2.5(x)
Step-by-step explanation:y=2.5(x)
y=2.5(2)= y=5
Yes it’s right for this problem
Answer:
look at this
o(*≧□≦)o
Step-by-step explanation:
MATH-WAY
