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Paha777 [63]
3 years ago
5

What is the answer to 72=3/4c

Mathematics
1 answer:
Darina [25.2K]3 years ago
8 0

First, we take the 3/4 and multiply 72 by it's reciprocal, 4/3. Your answer would come to c= 96.

Hope this helped :)


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Step-by-step explanation:

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It would be an A if i'm correct.
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Which of the following is a perfect square trinomial?
shutvik [7]

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A.

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Take a look at what happens when squaring either of these...

(ax-by)^2=(ax-by)(ax-by)=a^2x^2-2abxy+b^2y^2\\\\(ax+by)^2=(ax+by)(ax+by)=a^2x^2+2abxy+b^2y^2\\

Notice a couple of patterns.

1.  The last term has a positive coefficient.  That rules out answer choices C and D.

2.  The coefficient of the middle term is either +2ab \text{ or } -2ab .  So what are <em>a</em>  and <em>b</em>?  <em>a</em> is the square root of the x^2 term and <em>b</em> is the square root of the y^2 term.

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5 0
3 years ago
Part 3: Write the equation of and graph an ellipse.
tensa zangetsu [6.8K]

Answer:

Step-by-step explanation:

The center is halfway between vertices, at (4, -6).

It is also halfway between foci.

:::::

The vertices are vertically aligned, so the parabola is vertical.

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with

 center (h,k)

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 foci (h,k±c), c² = a²-b²

Apply your data and solve for h, k, a, and b.

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a = 9

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b = √31

The equation becomes

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:::::

length of major axis = 2a = 18

length of minor axis = 2b = 2√31

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3 years ago
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Anna007 [38]
18

I used a calculator so you’ll need someone else to explain my apologies. I’m tried but I wanted to try and help by giving you the answer

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