electricalpurplepenguin

A researcher conducted a study of effects of taking a supplement once a day during lunch …

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researcher conducted a study of effects of taking a supplement once a day during lunch on cholesterol levels of elderly people at a nursing home. sample is made up of 38 male participants & 56 female participants. distribution of the ages of all participants in study: Age Range, Number of Participants: 70 – 74, 12; 75 – 79, 37; 80 – 84, 37; 85 and older, 8; Total 94. number of participants younger than 75 years old in study is what percent greater than number of participants 85 years or older?

Robin

If I did not recognize that the numerator was the difference of cubes and that I could factor out (a-b)^2 from numerator and denominator, could this be solved using polynomial division?

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a^3 – 3a^2b + 3ab^2 – b^3
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(a – b )(a – b)

If I did not recognize that the numerator was the difference of cubes and that I could factor out (a-b)^2 from numerator and denominator, could this be solved using polynomial division?