An arithmetic sequence has and common difference . What is ?

Answer and explanation

Correct answer: A. , from

  1. Step 1: Use . Step 2. . **Answer: . Why not the others:** 43 uses instead of , 36 drops , and 40 drops and uses .

Practise more Algebra, Functions, Geometry and Probability.

Free questions with an explanation for every one, and full timed Egzamin Maturalny (Matura Poland) mock tests.