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Question
On a number line, point Q is located at 1.6. The distance from point P to point Q is 1.02. Which of the
following could be the location of point P on the number line?
O 0.42
O 0.58
O 1.62
O 2.58

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.