Answer: https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:quadratic-functions-equations/x2f8bb11595b61c86:standard-form-quadratic/v/ex3-completing-the-square
Step-by-step explanation: This will help you a lot
Answer:
x=y2/8+y/2+9/2
Step-by-step explanation:
Given:
directrix: x=2
focus = (6,-2)
Standard equation of parabola is given by:
(y - k)2 = 4p (x - h)
where
directrix : x=h-p
focus=(h + p, k)
Now comparing the give value with above:
(h + p, k)= (6,-2)
k=-2
h+p=6
h=6-p
Also
directrix: x=h-p
h-p=2
Putting value of h=6-p in above
6-p-p=2
6-2p=2
-2p=2-6
-2p=-4
p=-4/-2
p=2
Putting p=2 in h-p=2
h=2+p
h=2+2
h=4
Putting k=-2, p=2, h=4 in standard equation of parabola we get:
(y - k)2 = 4p (x - h)
(y-(-2))^2 = 4(2) (x - 4)
(y+2)^2 = 8 (x - 4)
y2+4y+4=8x-32
y2+4y+4+32=8x
x=y2/8+4y/8+36/8
x=y2/8+y/2+9/2!
Answer:
400 pounds
Step-by-step explanation:
there is 3 groups of 4 in 12, so 50 x 2 = 100, that's once, 100 x 2 is 200. 200 x 2 is 400, so there's 400 pounds.
(x+2)²+5(x+3)-6=0
(x²+4x+4)+(5x+15)-6=0
x²+9x+13=0
Answer: x²+9x+13=0
9.74 because if you do 604 divided by 62 you will get 9.74 and if you do 9.74 and multiply it by 62 you will get 604<span />
