Perform the Indicated Operation $( 5 + 7 i ) ( 5 - 7 i )$

question 322

Multiple Choice

Perform the indicated operation. Write the result in the form a + bi.
- $( 5 + 7 i ) ( 5 - 7 i )$

• A) \(25 - 49 \mathrm { i }\)
• B) \(- 24 + 0 \mathrm { i }\)
• C) \(25 - 49 i ^ { 2 }\)
• D) \(74 + 0 \mathrm { i }\)

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Definitions:

Revenue

The cumulative revenue produced from the sale of products or services that are central to a company's main business activities.

Revenue Variance

The difference between the actual revenue earned and the budgeted or expected revenue.

Spending Variances

Differences between the budgeted amount of expense and the actual amount spent.

Customers Served

The number of customers who have purchased or utilized a service from a business within a given time period.