Answer:
6
Step-by-step explanation:
The variable on the summation sign indicates the number of terms
n goes from 1 to 6
There are 6 terms in the series
55. the central angels are the same, so the arc measure is the same
<span>(x-1)^2
=x^2 - 2x + 1
hope it helps</span>
Answer:
85 degrees
Step-by-step explanation:
All angles in a triangle add up to 180 degrees
50 + 45 is 95
95 + 85 = 180
