Answer:
2 units
Step-by-step explanation:
on edg
To answer this, use "completing the square."
x2 + y2 + 8x – 6y + 21 = 0 becomes
x^2 + 8x + 16 - 16 + y^2 - 6y + 9 - 9 + 21 = 0
(x + 4)^2 -16 + (y - 3)^2 + 12 = 0
or (x + 4)^2 + (y - 3)^2 = 4
Since 4 = r^2, r = 2 units, and the center is at (-4, 3)
Well if a story is 14-16 feet tall, then it would be about 50 floors.
Each story is 14-16 feet, and if you meet in the middle (15 feet) just divide 750 by 15, you get 50.
