Here are the first five terms of an arithmetic sequence. 26 19 12 5 -2

Find an expression, in terms of n, for the nth term of this sequence.

(I know part of it is -7n but I'm not sure if it would be 26 or -5 or what for the other part)
T <3

Which of the following graphs could represent a quartic function?

Abilliard ball is struck by a cue. it travels 1 0 0 cm 100cm before ricocheting off a rail and traveling another 1 2 0 cm 120cm into a corner pocket. the angle between the path as the ball approaches the rail and the path after it strikes the rail is 4 5 ∘ 45 ∘ . how far is the corner pocket from where the cue initially struck the ball? do not round during your calculations. round your final answer to the nearest centimeter.

In the figure below, segment ac is congruent to segment ab: which statement is used to prove that angle abd is congruent to angle acd? a.)triangle acd is similar to triangle abd. b.)triangle acd is congruent to triangle abd. c.)segment a. d. is congruent to segment ac. d.)segment a. d. is congruent to segment dc.