Mat 126 Week 4 Assignment Pythagorean Triples

Your name MAT 126 Geometric or Arithmetic Sequences Your Instructor date Geometric or Arithmetic Sequences I will be doing two math problems and describing why I believe the problem is to be solved by the geometric or arithmetic sequence. I will be working the problems out using the appropriate sequences and explaining in written form why I used the sequence I used. Problem 1. A person hired a firm to build a CB radio tower. The firm charges 100 for labor for the first ten feet. After, that the cost of the labor for each succeeding 10 feet is 25 more than the preceding 10 feet. That, is the next 10 feet cost 125, the next 10 feet will cost 150, ect. How much will it cost to build a 90 foot tower n 9 an a1 (n-1) d d 25 a9 100 (9-1) (25) a1 100 100 8 (25) an a9 (yet to be determined) 100 200 300 We now know what a9 is it is 300. The next step is that we need to nth term or the arithmetic sequence. n(a1a9)/2-1 9(100300) 9(400) 9(400)3,600 The nth term is 3,600 or it will cost 3,600.00 to build a 90-foot