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2 years ago

PLEASE HELP ASAP!!!!!!

Mathematics

2 answers:

IRINA_888 [86]2 years ago

7 0

Negative, this is because it goes downwards left meaning it’s negative. Also the points aren’t very close together.

horsena [70]2 years ago

3 0

Answer:

it is negative bc it runs down when it runs up it is positive

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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

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

linear trend equation is $Ft = 124 + 2t$

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

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.

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3 years ago

What is the measure of arc WZY?

Radda [10]

Answer:

Step-by-step explanation:

Look at the picture.

m∠WOY = 2(m∠WZY)

We have m∠WZY = 69°. Therefore m∠WOY = 2(69°) = 138°.

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3 years ago

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katrin [286]

Answer:

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3 years ago

1.17 − 0.07a + (−3.92a) What is this ????

umka21 [38]

Answer: 17-3.99a

Step-by-step explanation:

Remove parentheses.

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17+(−0.07a−3.92a)

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3 years ago

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Answer:

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3 years ago

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