Solve the Equation by Using the Square Root Property $$t ^ { 2 } = - 49$$

question 8

Multiple Choice

Solve the equation by using the square root property. $$t ^ { 2 } = - 49$$

• A) \(\{ 7 \}\)
• B) \(\{ 7 , - 7 \}\)
• C) \(\{ 7 i , - 7 i \}\)
• D) \(\{ 7 i \}\)

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Definitions:

Standard Machine-Hours

A predetermined measure of how much machine time is expected for a task, used in cost accounting.

Variable Overhead Rate Variance

The difference between the actual variable overhead rate incurred and the standard rate, multiplied by the actual activity level.

Standard Cost

The predetermined cost of manufacturing a single unit or a number of units during a specific period under normal conditions.

Raw Materials Quantity Variance

The difference between the actual quantity of raw materials used and the expected quantity of raw materials based on the standard cost, which indicates efficiency in using materials.