Answer:
The equation of the parabola is (x-2)^2 =8(y-2)
Step-by-step explanation:
Given focus is (2,4) and the directrix is y=0 so the parabola axis is parallel to y- axis.
Focus is (α,β+a) and the directrix is of the form y = β-a
so given focus is (2,4) compare (α,β+a)
here β+a = 4 and a=2 and β=2
now given directrix y = β-a = 2-2 = 0
now the general parabola is (x-α)^2 =4a(y-β) ...(1)
now substitute α =2 ,β=2 and a=2 above equation
The equation of the parabola is (x-2)^2 =8(y-2)
Answer:256
Step-by-step explanation:
Answer:
21 green marbles and 5 blue marbles
Step-by-step explanation:
green: g and blue: b
b+g=26
g=4b+1
b+(4b+1)=26
5b+1=26
5b=25
b=5.
g=26-b, g=26-5, g=21.
Answer:
d= 3 + 3/4f)
Step-by-step explanation:
Move the 3f to the other side of the equal sign and make it positive.
Then divide both sides by 4 to isolate d.
(d = 3+ 3/4f)
Answer:
a. 6 and 8.
c. 4 and 7
b. 29 and 30.
d. 17 and 23.
Step-by-step explanation:
