An arithmetic sequence is defined by the general term tn = 19 - (n - 1)18, where n eN and n 2 1. What is the recursive formula of the
sequence?
t1 = 18, tn = tn - 1 - 19, where n eN and n> 1
t1 = 18, tn = tn - 1 - 18, where n eN and n> 1
t1 = 19, tn = tn - 1 - 19, where n eN and n> 1
t1 = 19, tn = tn - 1 - 18, where n eN and n> 1

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.