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melamori03 [73]
3 years ago
8

What’s the equation of the circle with the center of five, -4 that passes through -3, two

Mathematics
1 answer:
ratelena [41]3 years ago
4 0

Answer:

(x-5)^2 + (y+4)^2 = 100

Step-by-step explanation:

First you need to know the equation of a circle which is,

(x – h)^2 + (y – k)^2 = r^2

(h,k) is the center point and r is the radius.

To find the radius use the distance formula which is

d=\sqrt(x2-x1)^2 + (y2-y1)^2 when you substitute you will get

\sqrt(5+3)^2 + (-4-2)^2 which simplifies to 10. That is the radius.

Then you will substitute that and the center point back into the equation to get the answer.

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109

Check your work by plugging your answers in and seeing if they add up to 360. 
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Which they should:)

So...
angle A= 86
angle B=102
angle C=63
angle D=109

and x=8



Hope this helped!!!
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