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A rectangular box with a square base is to be formed from a square piece of metal with 30-inch sides. If a square piece with side x is cut from each corner of the metal and the sides are folded up to form an open box, the volume of the box is . What value of x will maximize the volume of the box?
Brain Development
The process of growth and change in the brain’s structure, function, and pathways that occurs throughout a person’s life, but is most intense during childhood.
Selective Attrition
The phenomenon where participants drop out of a study over time, potentially leading to biased results if the dropout rate varies among the groups being studied.
Longitudinal Research
involves studies conducted over a lengthy period, allowing researchers to observe developments or changes in the subjects over time.
Cross-Sectional Research
A study design that analyzes data collected from a population, or a representative subset, at one specific point in time.
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