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Nikolay [14]
4 years ago
11

Can someone help me out with some math?

Mathematics
1 answer:
maw [93]4 years ago
8 0
81x^2 - 4y^2     Note this is the difference of 2 perfect squares

a^2 - b^2 = (a + b)(a - b)

so here we have a = 9x and b = 2y

and our factors are

(9x + 2y)(9x - 2y)

the dimensions are 9x + 2y and 9x - 2y
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Draw and label a net to find the surface area of the original juice box. it costs
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Based on the area of the juicebox and the cost per square inch, the cost to create one package is $7.20.

<h3>What is the cost of one package?</h3>

First, find the area of the juice box. The formula is:

= 2lh + 2lw + 2hw

= (2 x 3 x 4) + (2 x 3 x 1.5) + (2 x 4 x 1.5)

= 45 inch²

The Cost is $0.02 per square inch and the number per package is 8 juice boxes. The total cost is:

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= $7.20

Find out more on the area of a box at brainly.com/question/14345458.

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2 years ago
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3 years ago
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pychu [463]

Answer:

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Step-by-step explanation:

(Interpreting equation as)

\frac{-5jk}{35k^2k^2}

We can reduce the fraction by dividing the top and the bottom by terms they have in common.

First, lets rewrite both the numerator and denominator in terms of each other.

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If you expand the fraction, you will get exactly what you start with, now this is fine.

As we can see both halves of the fraction have a common term (5jk), so we can divide by this - and the fraction will still be equivalent to as it was before

\frac{-1}{7jk}, or simplified further,

-(7jk)^{-1}

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