Answer:
x² + y² + 4x - 2y + 1 = 0
Step-by-step explanation:
The equation of a circle is given by the general equation;
(x-a)² + (y-b)² = r² ; where (a,b) is the center of the circle and r is the radius.
In this case; the center is (-2,1)
We can get radius using the formula for magnitude; √((x2-x1)² + (y2-y1)²)
Radius = √((-4- (-2))² + (1-1)²)
= 2
Therefore;
The equation of the circle will be;
(x+2)² + (y-1)² = 2²
(x+2)² + (y-1)² = 4
Expanding the equation;
x² + 4x + 4 + y² -2y + 1 = 4 subtracting 4 from both sides;
x² + 4x + y² - 2y + 4 + 1 -4 = 0
= x² + y² + 4x - 2y + 1 = 0
By viewing equivalent ratios and rates as deriving from, and extending, pairs of rows (or columns) in the multiplication table and by analyzing simple drawings that indicate the relative size of quantities.
HahahaAnswer:
Step-by-step explanation:
50 1/2 <u>divided by</u> 1/4 = 202
A farm was selling 50 1/2 apples to 2 families in need of some food. 1 family got half of what the 2nd family got.
50 1/2 <u>multiplied by</u> 1/4 = 12.625
The first number (50 1/2) is 202 times greater than the second number (1/4)
Hope this helps! :'(
I tried my best. I'm not good at math.
Answer:
where's the question...?
Step-by-step explanation:
