Solve the Problem $- 0.3 \mathrm { t } ^ { 2 } + 10 \mathrm { t }$

question 67

Multiple Choice

Solve the problem.
-The polynomial $- 0.3 \mathrm { t } ^ { 2 } + 10 \mathrm { t }$ describes the average number of digits that participants in a memorization experiment were able to recall after t minutes. Find the number of digits recalled after 9 minutes. Round to the
Nearest digit.

• A)46 digits
• B)66 digits
• C)86 digits
• D)106 digits

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Definitions:

Natural Rate

Typically refers to the natural rate of unemployment, which is the rate of unemployment expected when the economy is at full employment, without cyclical unemployment.

Unemployment Rate

The percentage of unemployed persons in the labor force who are vigorously trying to secure a job.

Cyclical Unemployment

Unemployment caused by a downturn in economic activity or recession, affecting the overall demand for labor.

Unemployment Rate

The segment of the labor force that is currently without work yet actively seeking employment opportunities.