(x2 - 10x + 25) + (y2 - 16y +64) = 16
center (, )
radius =
1 answer:
The standard equation for a circle is (x-h)^2 + (y-k)^2 = r^2 where the center is at point (h,k) and r is the radius. To investigate this, check first if the quadratic equations are a perfect square. This is determined by dividing the middle term by 2 and taking its square. If it equals to the third term, it is a perfect square. For (x^2 - 10x +25): (-10/2)^2 = 25 (perfect square) For (y^2 - 16y + 64): (-16/2)^2 = 64 (perfect square) Then, we simplify the equation by factoring: (x - 5)^2 + (y -- 8)^2 = 16 Thus, the center is at point (5,8) Also, the radius is square root of 16, which is 4 .
You might be interested in
Answer:
let g = number of guests. if each guest is to have 3 cups we represent this as
3g
for the additional 20 cups, we add 20
3g + 20
108 . explanation : 36 x 3 = 108 ( it’s easy multiplication )
Expression (non-algebraic): 3+2 An equation: 2x +1 = 21 An inequality: 2x > 2+2
Answer:
2
Step-by-step explanation:
Answer:$800 to the nearest dollar
Step-by-step explanation:
To find this
7.2/100×$11000
=$792
To the nearest dollar
$800