Use the Formula for the General Term of an Arithmetic $a _ { 11 }$

question 104

Multiple Choice

Use the Formula for the General Term of an Arithmetic Sequence
-Find $a _ { 11 }$ when $a _ { 1 } = 21 , d = - 3$ .

• A) \(- 9\)
• B) \(- 12\)
• C) \(- 30\)
• D) 51

---

Definitions:

Flaring Tool

A tool used to widen the end of a pipe or tube to enable a better connection with another pipe or fitting.

Flare Nut Wrench

A specialized tool designed to grip the flats of a flare nut, used in plumbing or automotive applications to prevent rounding off the nut.

Brake Pedal Position Sensor

A sensor that detects the position of the brake pedal and sends the information to the vehicle's computer system for ABS and other functions.

ABS

Anti-lock Braking System, a safety system that prevents the wheels from locking up and skidding during braking, maintaining steering control.