Trying to understand where each thing is at on the geometric series/sequence. where would i find a1, r, and n on these and what would be the sum of the last one? is there any calculator i can look up to me with this you!

Explain why the function is discontinuous at the given number a. (select all that apply.) f(x) = 1 x + 1 a = −1 f(−1) is undefined. lim x→−1+ f(x) and lim x→−1− f(x) exist, but are not equal. lim x→−1 f(x) does not exist. f(−1) and lim x→−1 f(x) exist, but are not equal. none of the above

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Based on the figures as marked, /\rqs = —