Solve the Problem $t$ Seconds Is Given By $h = - 9.8 \mathrm { t } ^ { 2 } + 78.4 \mathrm { t }$

question 145

Multiple Choice

Solve the problem.
-If a rocket is propelled upward from ground level, its height in meters after $t$ seconds is given by $h = - 9.8 \mathrm { t } ^ { 2 } + 78.4 \mathrm { t }$ . During what interval of time will the rocket be higher than $147 \mathrm {~m}$ ?

• A) \(6 < t < 8\)
• B) \(5 < t < 6\)
• C) \(0 < t < 3\)
• D) \(3 < t < 5\)

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Definitions:

Final Sales

The total value of all goods and services sold for final use, excluding intermediary transactions and unsold inventory.

Leakage

In economics, the term refers to a situation where income or resources exit an economy or system rather than being retained or reinvested.

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Describes the continuous movement of goods, services, and money between households and businesses in an economy, illustrating how these entities interact in the markets for resources and products.

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The total value of all goods and services produced within a country's borders in a specific time period, serving as a broad measure of economic activity.