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vlada-n [284]
2 years ago
14

Which one is correct?

Mathematics
2 answers:
koban [17]2 years ago
4 0
3...................
vladimir1956 [14]2 years ago
3 0

Answer:

3

Step-by-step explanation:

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Graph.<br><br> y+4=2/5(x−3)<br> plz help
Dominik [7]

Answer:

Step-by-step explanation:

Use DESMOS to make the graph.  You can either rearrange the equation to put it in the form y = mx + b, or leave it as written.  The attached graph, has bot, and they overlap.

y+4=2/5(x−3)

or

y = (2/5)x-5.2

5 0
3 years ago
A parabola has a focus of F(8.5,−4) and a directrix of x=9.5.
HACTEHA [7]

Answer:

-\frac{1}{2}y^2-4y+1=x

Step-by-step explanation:

A parabola has a focus of F(8.5,−4) and a directrix of x=9.5.

General form of  horizontal parabola is

(y-k)^2=4p(x-h)

the distance between directrix and focus is the value of p

so p = 8.5 - 9.5 = -0.5

Focus is (h+p , k), given focus is (8.5, -4)

So k = -4 and h+p = 8.5

we know p = -0.5

h +p = 8.5

h - 0.5 = 8.5

so h= 9                   and k = -4

vertex is (h,k) that is (9, -4)

Now plug in the value in the general equation

(y-k)^2=4p(x-h), k= -4, h= 9 , p = -0.5

(y+4)^2=4(-0.5)(x-9)

(y+4)^2=-2(x-9)

y^2+8y+16=-2x+18

subtract 18 on both sides

y^2+8y-2=-2x

Divide whole equation by -2

-\frac{1}{2}y^2-4y+1=x




4 0
3 years ago
Calculate the amount of interest on $1200.00 for one year at an annual rate of 4 %.
kodGreya [7K]
Interest = (PRT)/100 = (1200×4×1)/100 = $48
7 0
2 years ago
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Kaylis [27]

Answer:

There is nothing there...

Step-by-step explanation:

I wish I could help you but you need to put in a picture or diagram

5 0
2 years ago
HELP WITH MY WHOLE TEST ;-; jensnshsjsjjsjsjsjsjsksksmsknnknksnisi
AfilCa [17]
The answer should be -6.
8 0
2 years ago
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