So, we know the sum of the first 17 terms is -170, thus S₁₇ = -170, and we also know the first term is 2, well

well, since the 17th term is that much, let's check what "d" is then anyway,
Answer: a complimentary angle measures 90 degrees. The measure of 2 complimentary angles would be 2x90=180
Step-by-step explanation:
Answer:
508,901
Step-by-step explanation: