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Alexxx [7]
2 years ago
5

Using the equation y^2=-5/4(x-2), find the equation of the directrix

Mathematics
1 answer:
kumpel [21]2 years ago
3 0

Answer:

Step-by-step explanation:

since its a horizontal parabola opening to the right we use a formula for the directrix

 x=h-p 4p=5/4 p=5

X= -3 v(h,k)=(2,0)

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Please help with an explanation!! will mark brainliest, not the best at fractions haha
Vitek1552 [10]
The correct answer is letter C; -6,
-5 2/5 or -27/5 and -4 1/5 or -21/5.

You can find this answers by substituting 1, 4, and 10 into the letter n.

Then you follow the operational order to get the answer.
8 0
3 years ago
Simplify this exponential expression:<br><br> (-49) 2/5<br><br> I give Brainliest
Aliun [14]

Answer:

I thank it is 12 4/5

Step-by-step explanation:

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5 0
2 years ago
Factor this expression completely<br><br>-21x + 28​
pickupchik [31]
-21x+28 is factored into:

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3 0
3 years ago
Read 2 more answers
What is 6n-10=8 show me how to do this problem
Lady bird [3.3K]

Answer: n=3

Step-by-step explanation:

6n-10=8

6n=18

n=3

You start by adding 10 to both sides and then divide both sides by 6.

4 0
3 years ago
The endpoints of directed line segment PQ have coordinates of P(-7, -5) and Q(5,3). What are the coordinates of point A, on PQ,t
Kamila [148]

Answer:

Therefore the co-ordinate of the point A is (-4,-3)

Step-by-step explanation:

If A(x₁,y₁) and B(x₂,y₂)  is divided by a point in ration m:n internally.

Then the co-ordinate of the point is  (\frac{mx_2+nx_1}{m+n},\frac{my_2+ny_2}{m+n}).

Given two points are P(-7,-5) and Q(5,3).

A point A on PQ, that divides PQ into a ratio of 1:3.

Since the point A lies on the PQ.

Therefore it divides the line segment PQ internally.

Here x₁= -7,y₁= -5 ,  x₂= 5,y₂ =3, m=1,n=3

Therefore the co-ordinate of the point A is

(\frac{5.1+(-7).3}{1+3},\frac{3.1+(-5).3}{1+3})

=(\frac{-16}{4},\frac{-12}{4})

=(-4,-3)

6 0
3 years ago
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