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Vadim26 [7]
3 years ago
11

if a train takes 40 minutes to travel from town a to town b what is its speed in kilometers per minute

Mathematics
1 answer:
lana66690 [7]3 years ago
5 0
70? unless the km on the street says 50 or 60 n there's traffic
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An analysis of the decay of 10 grams of an unstable element over time was completed and is displayed in the computer output.
Lady bird [3.3K]

The equation of the least-squared regression line is: In(Element) = 2.305 - 0.101(Time).

<h3>What is a regression line?</h3>

A regression line displays the connection between scattered data points in any set. It shows the relation between the dependent y variable and independent x variables when there is a linear pattern.

According to the given problem,

From the table we can see,

ln(Element) is the dependent variable and Time is the independent variable.

The constant = 2.305,

Time = -0.101

Hence, we can conclude, our least squared regression line will be

In (Element) = 2.305 - 0.101 (Time).

Learn more about regression line here: brainly.com/question/7656407

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Step-by-step explanation:

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