What is the mean of 18,24,17,21,24,16,29,18
2 answers:
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She made her mistake at the first step. To simplify a radical, you would find two numbers that multiply by each other to get your original number (under the radical) and have one of the number be a perfect square.
Her reasoning is wrong because 10*10 is not
. Had she been correct, her answer should have been able to be squared to equal
In other words, she should have done
(We used 25 because 25 is a perfect square, 5*5=25).
:)
Her reasoning is wrong because 10*10 is not
In other words, she should have done
(We used 25 because 25 is a perfect square, 5*5=25).
:)