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egoroff_w [7]
3 years ago
10

Brianna jogs 6 laps around a track each morning. The track is 1/4 mile around how many yards does Brianna jog each morning?​

Mathematics
1 answer:
Tanzania [10]3 years ago
4 0

Answer:

2640 yards

Step-by-step explanation:

6 times 1/4 equals 1.5. miles to yards are 1760 to 1 mile then multiple 1.5 times 1760 equaly 2640

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Jane Marko buys a car for $43,900. In three years, the car depreciates 48% in value. How much is the car worth in 3 years
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What’s the answer to this, only if u know thanks!’
VladimirAG [237]

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Step-by-step explanation:

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Answer:

Assuming population data

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Assuming sample data

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Step-by-step explanation:

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The first step in order to calculate the standard deviation is calculate the mean.

Assuming population data

\mu = \frac{\sum_{i=1}^6 X_i}{6}

The value for the mean would be:

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And the population variance would be given by:

\sigma^2 = \frac{\sum_{i=1}^6 (x_i-\bar x)}{6}

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And the deviation would be just the square root of the variance:

\sigma = \sqrt{0.000354}=0.0188

Assuming sample data

\bar X = \frac{\sum_{i=1}^6 X_i}{6}

The value for the mean would be:

\bar X = \frac{736.352+736.363+736.375+736.324+736.358+736.383}{6}=736.359

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s^2 = \frac{\sum_{i=1}^6 (x_i-\bar x)}{6-1}

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And the deviation would be just the square root of the variance:

s = \sqrt{0.000425}=0.0206

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3 years ago
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