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3 years ago

5 1/6*{-2/5}= rational or irrational

Mathematics

1 answer:

Ymorist [56]3 years ago

5 0

1/6*(-2/5) = 1/6*-0.4 =

-0.0666666667

It is a rational number. Every number that can be made by dividing two numbers that have no fractional parts is a rational number.

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CaHeK987 [17]

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Step-by-step explanation:

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4 years ago

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3 years ago

The table shows the average number of hours of daylight per day for the last four months of the year. a 2-column table with 4 ro

mina [271]

The correlation coefficient for the data in the table is A. –0.993

<h3>Calculations and Parameters:</h3>

Using this formula: $r = \frac{n(\sum xy)-(\sum x\sum y)}{\sqrt{n\sum x^2-(\sum x)^2}\sqrt{n\sum y^2-(\sum y)^2}}$

We would use x and y to represent the unknowns.

n = 4

We have,

∑x = 42,
∑y = 44.37 ,
∑xy = 461.3
∑x^2 = 446,
∑y^2 = 494

Putting these values in the formula $r = \frac{n(\sum xy)-(\sum x\sum y)}{\sqrt{n\sum x^2-(\sum x)^2}\sqrt{n\sum y^2-(\sum y)^2}}$ would bring the answer as. A. –0.993

Read more about correlation coefficient here:

brainly.com/question/4160489

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3 years ago