Evaluate the Discriminant for the Equation $4 + 7 z ^ { 2 } = 8 z$

question 338

Multiple Choice

Evaluate the discriminant for the equation. Then use it to predict the number of distinct solutions, and whether they are rational, irrational, or nonreal complex.
- $4 + 7 z ^ { 2 } = 8 z$

• A) One rational solution (a double solution)
• B) Two distinct rational solutions
• C) Two distinct irrational solutions
• D) Two distinct nonreal complex solutions

Recognize the significance of immediate instructions and their impact on program scan time.

Identify the conditions that trigger certain PLC operations, including jumping, latching, and subroutine execution.

Understand the concept and application of forcing functions in PLCs for various purposes including troubleshooting and testing.

Distinguish between different types of PLC instructions such as conditional, immediate, retentive, and nonretentive.

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Definitions:

Difference

The result obtained when one quantity is subtracted from another.

Common Stock

A type of equity ownership in corporations, where shareholders have voting rights and potentially dividends.

Primary Market

The financial market where new securities are issued and sold for the first time, often via initial public offerings (IPOs).

OTC Market

Over-The-Counter Market; a decentralized market where securities not listed on formal exchanges are traded directly between parties.