The Length and Width of a Standard Sheet of Paper

question 7

Multiple Choice

The length and width of a standard sheet of paper is measured,and then the area is found by calculation to be 91.50 in.².The number of significant figures in the width measurement must be at least

• A)1.
• B)2.
• C)3.
• D)4.
• E)​5.

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Definitions:

Concentrate

To focus one's attention or mental effort on a specific object, task, or goal, often by eliminating distractions.

Late Afternoon

The part of the day that extends from the mid to late afternoon, often considered to start around 3 pm and last until sunset.

Circadian Arousal

The fluctuation of physiological and behavioral processes, including wakefulness and sleepiness, following a roughly 24-hour cycle, influenced by external light-dark cycles.

Melatonin Secretion

The release of the hormone melatonin by the pineal gland, typically increased in response to darkness, influencing sleep patterns.