An Exponentially Decaying Substance Was Weighed Every Hour and the Results

question 76

Short Answer

An exponentially decaying substance was weighed every hour and the results are given below.What is the approximate half-life, in hours, of the substance? Round to 1 decimal place.
$\begin{array}{cc}\text { Time } & \text { Weight (in grams } \\9 \mathrm{am} & 16 \\10 \mathrm{am} & 14.623 \\11 \mathrm{am} & 13.364 \\12 \text { noon } & 12.214 \\1 \mathrm{pm} & 11.163\end{array}$

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Definitions:

Self-Efficacy

An individual's belief in their own capability to accomplish tasks and reach goals.

High Level

Pertaining to a position, status, or stage that is significantly above average in terms of importance, difficulty, or complexity.

Effort Required

The amount of physical or mental exertion needed to achieve a task or goal.

Self-Efficacy

A person's confidence in their capacity to achieve success in particular scenarios or complete a given task.