Answer:
![\huge\purple{ x^2 +(y+2)^2 = 4}](https://tex.z-dn.net/?f=%5Chuge%5Cpurple%7B%20x%5E2%20%2B%28y%2B2%29%5E2%20%3D%204%7D)
Step-by-step explanation:
Circle is centred at (0, -2)
-> h = 0 & k = - 2
radius of the circle (r) = y-coordinate of the center = - 2
Equation of circle in standard form is given as:
![(x-h)^2 +(y-k)^2 = r^2](https://tex.z-dn.net/?f=%28x-h%29%5E2%20%2B%28y-k%29%5E2%20%3D%20r%5E2)
Plugging the values of h, k and r in the above equation, we find:
![(x-0)^2 +[y-(-2)]^2 = (-2)^2](https://tex.z-dn.net/?f=%28x-0%29%5E2%20%2B%5By-%28-2%29%5D%5E2%20%3D%20%28-2%29%5E2)
![\implies\huge\orange{ x^2 +(y+2)^2 = 4}](https://tex.z-dn.net/?f=%5Cimplies%5Chuge%5Corange%7B%20x%5E2%20%2B%28y%2B2%29%5E2%20%3D%204%7D)
This is the required equation of circle.
Answer:
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Step-by-step explanation:
ttyuiii
No it is not greater than 0.88
She only asked the students in her ballet class, which is probably biased toward ballet. She should survey everyone in The Dance Academy. That way, the answers won't be biased.