Answer:
see the attachment for the graph
Step-by-step explanation:
The radius can be computed from the distance formula:
d = √((x2-x1)^2 +(y2-y1)^2)
d = √((7-5)^2 +(2-5)^2) = √(4+9) = √13
d ≈ 3.6056
The radius of the circle is √13, about 3.6056 units.
The value for n is
<u>given data</u>
10n^{2} - 12 = -8
making n the subject of the formula
10n^{2} = -8 + 12
10n^{2} = 4
divide through by 10
n^{2} = 4 / 10
finding the square root of both sides
n = square root ( 4 / 10 )
n = 0.632 or
Read more the subject of formula here: brainly.com/question/21140562
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