(x-9) (x+2)=x²+2x-9x-18=x²-7x-18
By identifying the radius and the center, we concluded that the equation is something like:

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How to write the equation of the circle?</h3>
For a circle centered on the point (a, b) with a radius R, the equation is:

So first we need to identify the center, we can see that it is: (2, 1.5)
And the radius is the distance between the center and the edge.
R = 1.8 (measured with a ruler, respecting the notation of the graph).
Then the equation of the circle is something like:

If you want to learn more about circles:
brainly.com/question/1559324
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14 + {-2 + 3[1 + 3(-6-2)]}
14 + { -2 + 3[1 + 3(-8)]}
14 + { -2 + 3[1 - 24]}
14 + { -2 + 3[-23]}
14 + {-2 - 69}
14 + {-71}
14 - 71
- 57 <==
Answer:
Step-by-step explanation:
13.84%,0.84
14.10,12,12,14,15,17,20.Median is 14.Mode is 12.
15.Mean so add 18+19+20=57.57/3 =19.