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Dovator [93]
3 years ago
10

A rectangular garden has a walkway around it. The area of the garden is 4(5.5x + 2.5). The

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
3 0

Answer:

a = 22x + 23

Step-by-step explanation:

area walkway = area both - area garden

a = 5.5(8x + 6) - 4(5.5x + 2.5)

Distribute

a = (44x + 33) - (22x + 10)

Simplify

a = 44x + 33 - 22x - 10

Combine like terms

a = 22x + 23

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insens350 [35]

Answer:

3.1 inches

Step-by-step explanation:

Area of the cookie =Pi r^2

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Radius r = diameter/2 = 2/2

= 1

Therefore

Area = 3.14 x 1^2

= 3.14 x 1 x 1

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3 0
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What is the domain of f(x)=5x^2 2x-1
adoni [48]
Domain of 5x^2 + 2x - 1 is all real numbers.
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An analyst must decide between two different forecasting techniques for weekly sales of roller blades: a linear trend equation a
Amiraneli [1.4K]

Answer:

Following are the responses to the given question:

Step-by-step explanation:

Mean Absolute Deviation MAD

MAD = \sum_{i=1}^{n} \frac{\left | actual_{i}-forecast_{i} \right |}{n}

Mean squared error  

MSE=\Sigma^{n}_{i=1} \frac{(Actual_i - Forecast_i)^2}{(n - 1)}

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MAD = \frac{23}{10} = 2.3\\\\MSE = \frac{91}{9}= 10.11\\\\

Naive method

MAD = \frac{36}{9} = 4\\\\MSE = \frac{202}{8}=25.25\\\\MAD (Naive) = 4\\\\MAD (Linear) =2.3\\\\MSE (Naive)=25.25\\\\MSE (Linear)=10.11\\\\

Please find the attached file.

7 0
3 years ago
Please need help thank you
lilavasa [31]

Answer: 7

How many took 7.5 OR less. This means it includes the hikes that took 7.5 hours. Count all of the ones that start from 7.5 and lower

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mojhsa [17]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
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