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SCORPION-xisa [38]
3 years ago
11

on a town map, each unit of the coordinate plane represents 1 mile. Three branches of a bank are located at A(-3,1), B(2,3), and

C(4,-1). A bank employee drives from Branch A to Branch B and then drives halfway to Branch C before getting stuck in traffic. What is the minimum total distance the employee may have driven before getting stuck in traffic? Round to the nearest tenth of a mile.
Mathematics
1 answer:
Tomtit [17]3 years ago
8 0
Hey There! Hope your having a great Evening! :)


Your answer will be A(-3,1)

Hope I helped! :)

-Duolingo

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Answer:

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Step-by-step explanation:

First off to find the range, we find the highest value and subtract it to the lowest value. In this situation the values are:

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Lowest = 5

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Now to find the variance of the sample data set, we first need to find for the mean of the data.

The mean of the data with be the sum of all the numbers in the data set divided by the number of samples.

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So the then-

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Now to find the variance we simply use the formula:

Now to find the variance we simply use the formula:

σ²=\frac{(xi - Mean)^{2}  }{n-1}

σ²=\frac{(5 - 61.818)^{2} + (14 - 61.818)^{2} + (26 - 61.818)^2 +  (99 - 61.818)^2} {11-1}

σ²=\frac{11,415.64}{10}

σ²=1,141.564

Now to find the standard deviation, we take the variance and get the square root of it.

Standard Deviation= \sqrt{1,141.564}

Standard Deviation= 33.78703

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