Answer:
Fetal circulation is markedly different from circulation in adults. In the Fetus, the main filtration site for Plasma Nutrients and wastes is the Placenta, which is outside of the body cavity. In adults, the circulation occurs entirely inside the body.
Step-by-step explanation:
The answer is 38.25 thank me later
The equation of a circle is given as:
(x-a)^2 + (y- b)^2 = r^2 where (a, b) is the center.
(x-9)^2 = x^2 -18x + 81 - ----(i)
(y+2)^2 =y^2 + 4y +4 ------ (ii)
r^2 = 49 ------ (iii)
Adding equation (i) and (iii)
x^2 + y^2 - 18x + 4y + 85 -----(iv)
Equating equation (iv) and (iii)
<span>x^2 + y^2 - 18x + 4y + 85 = 49
Arrange the equation:
</span> <span>x^2 + y^2 - 18x + 4y + 36 = 0
</span><span>
I hope this helps
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Answer:

Step-by-step explanation:
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