In 2-3 sentences describe why the only way an infinite geometric series has a sum is if r < 1. © 2007, 2009, 2011, 2012, 2013, 2014, 2016 glynlyon, inc.

Find the balance at the end of 4 years if 1000 is deposited at the rate of

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"