If a Ball Is Thrown Upward at 64 Feet Per $\mathrm { S } = 120 + 64 \mathrm { t } - 16 \mathrm { t } ^ { 2 }$

question 178

Multiple Choice

If a ball is thrown upward at 64 feet per second from the top of a building that is 120 feet high, the height of the ball can be modeled by $\mathrm { S } = 120 + 64 \mathrm { t } - 16 \mathrm { t } ^ { 2 }$ feet, where t is the number of seconds after the ball is thrown. After
How many seconds does the ball reach its maximum height?

• A) 2 sec
• B) 4 sec
• C) 1 sec
• D) 3.8 sec

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Definitions:

Regulated Fares

Fares for transportation or services that are controlled or set by a governing body to ensure fairness and accessibility.

Elastic Demand

A situation where the quantity demanded of a good or service is sensitive to changes in its price.

Total Revenue

The total income earned by a company from its sales of goods or services before any costs or expenses are subtracted.

Demand Elasticity

A measure of how much the quantity demanded of a good responds to a change in the price of that good, with elasticity greater than one indicating a high response to price changes.