One of the Nearest Stars Is Alpha Centauri, Whose Distance

question 42

Multiple Choice

One of the nearest stars is Alpha Centauri, whose distance from Earth is 4.2 * 10¹⁶ m.How long does it take light to travel from Alpha Centauri to us?

• A) 1.25 seconds
• B) 8.3 minutes
• C) 4.4 years
• D) 560 years
• E) 6,200 years

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Definitions:

Maintenance Costs

The expenses incurred to keep an asset in working condition or restore it to proper operation.

Least-Squares Regression

A statistical method used to determine the line of best fit by minimizing the sum of the squares of the differences between observed values and those predicted by a linear function.

Machine-Hours

A measure of production time, calculating the total hours a machine is operated within a specific period.

Inspection Costs

Expenses incurred to ensure that products or services meet specified quality and safety standards before being sold or delivered.