The area of a rectangular rug is 15 feet squared. If the width of the rug is 3 feet, what is the length of the rug.
2 answers:
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<h2>Answer:</h2>
Variance
<h2>Step-by-step explanation:</h2>The standard deviation is related to the variance. The standard deviation measures the variation or dispersion of a set of data and is represented by the Greek letter sigma , while the variance measures how far a set of numbers are spread out from their average value. The variance is obtained by squaring the standard deviation, so the variance can be found as
Step-by-step explanation:
By using Pythagoras theoram,
x²= (6)²+(4)²
optionD