Use the Partial Sum Formula to Find the Partial Sum

question 20

Multiple Choice

Use the partial sum formula to find the partial sum of the given arithmetic sequence.
-Find the sum of the first 25 terms of the arithmetic sequence: -5, 2, 9, 16, . . . .

• A) 1896
• B) 1650
• C) 2063
• D) 1975

---

Definitions:

Therapy

A form of treatment aimed at relieving or healing psychological disorders, typically involving verbal communication between the patient and a therapist.

Effective

refers to producing the desired result or making a striking impression.

Success Rates

The percentages or ratios of achieving a specified goal or outcome within a defined dataset or experimental setup.

Psychotherapy

The treatment of mental disorders by psychological rather than medical means, involving communication between a therapist and patient.