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Phantasy [73]
2 years ago
7

PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
levacccp [35]2 years ago
7 0
The answer is 20x-21y+14
Masja [62]2 years ago
4 0
The answer is ( A):)
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Find the value of x<br> X+8 =5x-4
Tatiana [17]

Answer:

I'm pretty sure the value of it is 3

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3 years ago
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The relationship between a distance x in a garden and the corresponding distance y in a model of the garden is y = kx. A triangu
iragen [17]

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1/6

Step-by-step explanation:

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3 years ago
Can someone please help me?
VikaD [51]

Answer:

The answer is 27

Step-by-step explanation:

The reason being, you can solve this 2 ways.

1) Combine like terms, 7a-4a = 3a.

Now just substitute (a=9) into 3a.

3 * (9) = 27.

2) Or just substitute a = 9 into the original expression.

7 * (9) - 4 * (9)

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2 years ago
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The baseball coach bought 8 new baseballs for $3 each. The basketball coach bought 6 new basketballs for $11 each. How much more
tia_tia [17]

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$42 more.

Step-by-step explanation:

Baseball: 8(3) = $24

Basketball: 6(11) = $66

66 - 24 = $42

8 0
3 years ago
What is the equation of the parabola in vertex form with vertex (2,-4) and directrix y=-6​
Pachacha [2.7K]

Answer:

y=\dfrac{1}{8}(x-2)^2-4

Step-by-step explanation:

The directrix y=-6 is parallel to the x axes, so parabola has equation of the form

(x-x_0)^2=2px(y-y_0),

where (x_0,y_0) is the vertex of parabola and p is parabola's parameter.

By the definition, \frac{p}{2} is the distance from the vertex to the directrix, so

\dfrac{p}{2}=2\Rightarrow p=4

Hence, the equation of parabola is

(x-2)^2=8(y+4)

See attached diagram for the graph of parabola and its directrix.

In vertex form this equation is

y=\dfrac{1}{8}(x-2)^2-4

8 0
3 years ago
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