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trapecia [35]
3 years ago
9

Find the perimeter. (attachment included)

Mathematics
1 answer:
Tresset [83]3 years ago
6 0

Answer:

5 + 2\sqrt{11}

Step-by-step explanation:

5 + \sqrt{11} - \sqrt{5} + \sqrt{11} + \sqrt{5}

5 + 2\sqrt{11} -  \sqrt{5} + \sqrt{5}

5 + 2\sqrt{11}

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Lucy is a dress maker. She sews 4/7 of a dress in 3/4 hour. Lucy sees at a constant rate. At this rate, how many dresses does lu
IgorLugansk [536]

Answer:

Lucy sews \frac{16}{21} dresses in 1 hour.

Step-by-step explanation:

Given:

Lucy sews \frac{4}{7} of a dress in \frac{3}{4} hour.

She sews at constant rate.

We need to find the number of dresses she makes in 1 hour.

In \frac{3}{4} hour = \frac{4}{7} dress

So in 1 hour = Number of dresses in 1 hour

By using Unitary method we get;

Number of dresses in 1 hour= \frac{\frac{4}{7}}{\frac{3}{4}} = \frac{4}{7}\times \frac{4}{3}= \frac{16}{21}

Hence Lucy sews \frac{16}{21} dresses in 1 hour.

5 0
3 years ago
Bryan decided to ride his bike along a new route home from school to avoid some construction. Before leaving school, he estimate
docker41 [41]
<h3>Answer:   20 minutes.</h3>

Work Shown:

Estimate = 1.25*(actual time)

Estimate = 1.25*(16)

Estimate = 20

Bryan estimated it would take 20 minutes.

Note: The multiplier 1.25 represents an increase of 25%

8 0
2 years ago
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Maksim231197 [3]

Answer:

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Step-by-step explanation:

m(m-3) = 0

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What is the coefficient of x^3y^2 in the expansion of (2x+y)^5
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If you expand the entirety of the polynomial, you get the following:

32x^5+80x^4y+80x^3y^2+40x^2y^3+10xy^4+y^5


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I think it’s C. Im not completely sure.
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