In 1981 the Average Tuition for One Year at a Certain

question 83

Multiple Choice

In 1981 the average tuition for one year at a certain state school was $1,800.Thirty years later,in 2011,the average cost was $13,700.What was the growth rate in tuition over the 30-year period?

• A) 12%
• B) 9%
• C) 6%
• D) 7%
• E) 8%

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Definitions:

Center-Tapped Transformer

A transformer that has a wire connected to the electric midpoint of its winding. Generally, the secondary winding is tapped.

High Leg

A certain type of three-phase power connection that exhibits a higher voltage on one leg when measured to ground than on the other legs.

Output Power

The amount of power, typically measured in watts, that a device, system, or process delivers to its load.

Open Delta

An open delta connection refers to a method of transformer connection used in electrical systems that employs two transformers to create a three-phase supply with a smaller capacity than a full delta connection.