The Coordinate of an Object Is Given as a Function

question 73

Multiple Choice

The coordinate of an object is given as a function of time by x = 7t - 3t², where x is in meters and t is in seconds.Its velocity at t = 3s is:

• A)-6 m/s
• B)-11 m/s
• C)-21 m/s
• D)9 m/s
• E)18 m/s

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Definitions:

Friedman Test

An approach in statistics, free from parametric constraints, used to detect treatment variances across a series of test efforts.

7-point Scale

A scale, often used in surveys and questionnaires, that provides seven levels for respondents to express their agreement, satisfaction, or intensity of feeling about a statement or question.

Significance Level

The threshold used in statistical hypothesis testing to determine if a result is statistically significant, typically denoted by alpha (α).

Taste Ratings

A numerical or categorical scale used to evaluate the flavor preference or acceptability of foods, beverages, or other consumable products.