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Veronika [31]
3 years ago
8

Okay... i know its a lot 2 ask but i really need help w/this papaer....

Mathematics
1 answer:
givi [52]3 years ago
7 0
D and I goes to the red house


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The directrix of a parabola is y=−4y=−4 . The focus of the parabola is (−2,−2)(−2,−2) .
Dennis_Churaev [7]
Because the focus is (-2,-2) and the directrix is y = -4, the vertex is (-2,-3).

Consider an arbitrary point (x,y) on the parabola.
The square of the distance between the focus and P is
(y+2)² + (x+2)²
The square of the distance from the point to the directrix is
(y+4)²

Therefore
(y+4)² = (y+2)² + (x+2)²
y² + 8y + 16 = y² + 4y + 4 + (x+2)²
4y = (x+2)² - 12
y = (1/4)(x+2)² - 3

Answer: y= \frac{1}{4} (x+2)^{2} - 3

5 0
3 years ago
A bag contains 4 blue coins and 8 red coins. A coin is removed at random and replaced by three of the other color.
guajiro [1.7K]

the answer is 11/14 because you remove one blue coin and add three red coins and in total in the bag there are 14 coins. you then create a fraction by putting the 11 red coins over the 14 total coins to get the probability of what you will get

The answer is 11/14

6 0
3 years ago
What is the orgins of a line if the slope is -2
Reptile [31]
Da answer is 1 lalala
8 0
3 years ago
Ayyyyyyyyyyyyyyyy i need some help lease
ki77a [65]

Answer:

.95

Step-by-step explanation:

6 0
3 years ago
jenny is comparing the cost of two packages of socks. one package has 8 pairs for $12. Another package has 3 for $6. Are the rat
Ainat [17]
In order to solve this we need to make on part of both statements equal.

Since 12 is divisible by 6 lets do that.

Multiply everything in the second package by 2.

It then becomes 6 pairs for $12.

So now  have have 6 or 8 pairs for $12.

You are getting a different amount for the same price therefore they are not proportional.
5 0
3 years ago
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