Solve Nonlinear Systems by Addition
Solve the System by the Addition

question 150

Multiple Choice

Solve Nonlinear Systems By Addition
Solve the system by the addition method.
- $$\begin{array} { l } x ^ { 2 } - y ^ { 2 } = 9 \\x ^ { 2 } + y ^ { 2 } = 51\end{array}$$

• A) \(\{ ( \sqrt { 30 } , \sqrt { 21 } ) , ( - \sqrt { 30 } , \sqrt { 21 } ) , ( \sqrt { 30 } , - \sqrt { 21 } ) , ( - \sqrt { 30 } , - \sqrt { 21 } ) \}\)
• B) \(\{ ( 0,0 ) \}\)
• C) \(\{ ( \sqrt { 30 } , \sqrt { 21 } ) , ( - \sqrt { 30 } , - \sqrt { 21 } ) \}\)
• D) \(\{ ( \sqrt { 30 } , \sqrt { 21 } ) , ( - \sqrt { 30 } , \sqrt { 21 } ) \}\)

---

Definitions:

Piggybacking

Unauthorized access of a secured wireless network by utilizing a legitimate user's connection without their knowledge.

SSID

The Service Set Identifier, a unique name that identifies a particular Wi-Fi network to users.

Firmware

Low-level software programmed into the read-only memory of a device, providing control for the device's specific hardware.

Range Extender

A device that amplifies an existing wireless signal to extend its range and coverage area.