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qaws [65]
3 years ago
11

Algebra 2 Common Core

Mathematics
1 answer:
kap26 [50]3 years ago
4 0
I don't know what the answer to number 1 is.

2. <u>Center</u>
25x² + 4y² - 50x - 24y - 39 = 0
           25x² + 4y² - 50x - 24y = 39
           25x² - 50x + 4y² - 24y = 39
            25(x² - 2x) + 4(y² - 6y) = 39
25(x² - 2x + 4) + 4(y² - 6y + 9) = 39 + 25(4) + 4(9)
25(x² - 2x + 4) + 4(y² - 6y + 9) = 39 + 100 + 36
25(x² - 2x + 4) + 4(y² - 6y + 9) = 175
                <u>25(x - 2)²</u> + <u>4(y - 3)²</u> = <u>175</u>
                    175           175        175
                    <u>(x - 2)²</u> + <u>4(y - 3)²</u> = 1
                        7           17
<u />
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aleksklad [387]

\dfrac{-20t^5u^2v^3}{48t^7u^4v}=\dfrac{-20}{48}\cdot\dfrac{t^5u^2v^2v}{t^5t^2u^2u^2v}=-\dfrac{5}{12}\cdot\dfrac{v^2}{t^2u^2}=-\dfrac{5v^2}{12t^2u^2}

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6 0
3 years ago
A signal can be sent from one location to another by running different colored flags up a flagpole, one above the other. There a
Verdich [7]

Using the permutation formula, it is found that there are 17,297,280 different signals consisting of 8 flags.

In this problem, the order in which the flags are visited is important, hence the <em>permutation formula</em> is used to solve this question.

<h3>What is the permutation formula?</h3>

The number of possible permutations of x elements from a set of n elements is given by:

P_{(n,x)} = \frac{n!}{(n-x)!}

The first flag is blue, then the remaining 7 are taken from a set of 14, hence:

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There are 17,297,280 different signals consisting of 8 flags.

More can be learned about the permutation formula at brainly.com/question/25925367

8 0
2 years ago
What is the value of x? enter your answer in the box.
Mamont248 [21]

Answer:

if 9x8 =72

then 56/8= 7

x=7



8 0
3 years ago
Marge cut 16 pieces of tape for mounting pictures on poster board. Each piece of tape was 3/8 inch long. How much tape did Marge
mafiozo [28]
Hi! :)

It sounds like you need to multiply this fraction. 

\frac{3}{8}*16=6

So, Marge used 6 total inches of tape. 

Hope this helps!
5 0
3 years ago
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harkovskaia [24]
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Divide both sides by 1.25

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2 years ago
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