The Sum of Two Numbers Is Nine

question 92

Multiple Choice

The sum of two numbers is nine. The sum of the squares of the same two numbers is forty-one. Find the two numbers.

• A) 4, 5
• B) 6, 3
• C) 8, 1
• D) 2, 7
• E) 0, 9

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Definitions:

Open Science

A set of emerging principles intended to improve the transparency of scientific research and that encourage fully reporting all methods and variables used in a study, reporting studies that failed as well as succeeded, and sharing data among scientists.

Experimental Study Designs

Research methods that involve the manipulation of one or more variables to determine their effect on a certain outcome, often including control groups and randomization.

Objective Test

A type of assessment tool designed to measure an individual's knowledge or abilities in a specific area with minimal subjectivity from the tester.

Factor Analytic

A statistical method used to identify underlying variables, or factors, that explain patterns of correlations among observed variables, commonly used in psychology.