Algebra - Ch. 17: Roots and Radicals (5 of 20) How to Take a Square Root of a Fraction or Decimal

We will learn how to take a square root of a fraction or decimal.

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[znhait]

The only thing I’ll say is that the square roots of decimals seemed arbitrary. For a fraction, it’s easy to use the property that the square root of a fraction is the same as the square root of the numerator over the square root of the denominator.

For a fraction, I think it’s best to get rid of the decimal inside—at least show that is what you are doing. For sqrt(0.1444), convert it to a fraction by multiplying both the numerator and denominator—1 here—by sqrt(10000). It’d be: sqrt(1444)/sqrt(10000) = 38/100 = 0.38. For sqrt(0.729), people would be tempted to say it’s 0.27.

[sqrt(0.144

[prize]

Unrelated(astronomy topic), but I couldn't find the answer to this problem: How do you find the barycenter of multiple stellar objects? Thanks for all you videos btw, these help me a lot.