Solve the Problem $5.1 \times 10 ^ { 8 } \mathrm { yr }$

question 343

Multiple Choice

Solve the problem.
-The half-life of an element is $5.1 \times 10 ^ { 8 } \mathrm { yr }$ . How long does it take a sample of the element to decay to $\frac { 2 } { 5 }$ of its original mass? (Express results in scientific notation, rounded to the nearest hundredth.)

• A) \(5.80 \times 10 ^ { 8 } \mathrm { yr }\)
• B) \(6.74 \times 10 ^ { 8 } \mathrm { yr }\)
• C) \(1.14 \times 10 ^ { 8 } \mathrm { yr }\)
• D) \(3.24 \times 10 ^ { 8 } \mathrm { yr }\)

Analyze the effects of social influence on behavior, thoughts, and feelings.

Understand the process of impression formation and its effects.

Recognize and explain the actor-observer effect and the fundamental attribution error.

Understand interpersonal attraction and the factors influencing it.

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Definitions:

Nominal

Pertaining to data classification where categories are named in an unordered manner, used for qualitative, non-numerical information.

Level Of Measurement

The nature of information within data, including nominal, ordinal, interval, and ratio categories, reflecting the degree of quantitative information they hold.

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