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Answer: x^2 + y^2 = 40</h3>
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Explanation:
The center is the origin, so (h,k) = (0,0).
The point (x,y) = (2,6) is on the circle's edge. We'll use these four values to find the value of r^2
(x-h)^2 + (y-k)^2 = r^2
(2-0)^2 + (6-0)^2 = r^2
2^2 + 6^2 = r^2
4 + 36 = r^2
40 = r^2
r^2 = 40
We don't need to solve for r itself. If you wanted to, you'd get the radius to be r = sqrt(40) = 2*sqrt(10) = 6.324555 approximately.
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Since h = 0, k = 0, and r^2 = 40, we can say:
(x-h)^2 + (y-k)^2 = r^2
(x-0)^2 + (y-0)^2 = 40
x^2 + y^2 = 40
Need more context? I don’t understand
The center of the circle is (3,9) so the answer is A
Answer:
Early mathematics was essentially a form of counting, and was used to count things like sheep, crops and exchanged goods. Later it was used to solve more sophisticated problems related to irrigation and perhaps architecture
Step-by-step explanation:
