What is 2*0.25piX*0.25pi=2pir^2*0.25pi ?

The solution to 2*0.25piX*0.25pi=2pir^2*0.25pi is Parabola with (h,k)=(0,0),p= 1/16

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20.25piX0.25pi=2pir^2*0.25pi

2 \cdot 0.25 π X \cdot 0.25 π = 2 π r^{2} \cdot 0.25 π

(h, k) = (0, 0), p = \frac{1}{16}

Solution steps

2 \cdot 0.25 π X \cdot 0.25 π = 2 π r^{2} \cdot 0.25 π

Rewrite

2 \cdot 0.25 π X \cdot 0.25 π = 2 π r^{2} \cdot 0.25 π

in the standard form:

4 \cdot \frac{1}{16} (X - 0) = (r - 0)^{2}

Therefore parabola properties are:

(h, k) = (0, 0), p = \frac{1}{16}

12 x^{2} + 25 y = 300

x^{2} - m (x) - 1 = 0

y^{2} - 8 y - 16 x - 16 = 0

y + 1 = 2 x^{2}

y = x^{2} + 2.5

What is 2*0.25piX*0.25pi=2pir^2*0.25pi ?
The solution to 2*0.25piX*0.25pi=2pir^2*0.25pi is Parabola with (h,k)=(0,0),p= 1/16