Jan 29, 2005 · Thank you. The sum of the first three terms of a geometric sequence of positive integers is equal to seven times the first term, and the sum of the first four terms is forty-five. What is the first …

Jun 8, 2017 · Hello, this is the question I was given. For a geometric sequence, term 4 = 4x+8 and term 7 = x-4. If the common ratio is (1/2), what is the first term? My initial work to do this question was t …

Apr 13, 2020 · Hello! This is a geometric sequence maze worksheet that I've completed. I struggled a bit with some minor errors, so I'm a bit paranoid that I may have missed something. I'd appreciate if …

May 4, 2023 · A patient is given a single dose of 5mg of iodine-131 in their system. a. Identify the first term, a, and the common ratio, R, for the geometric sequence for the radioactive decay. b. Calculate …

May 18, 2013 · I keep getting B, but the answer sheet says C. I'm using ar^n= 1024 ( (-1/2)^16)= 1/64. Find the 16th term in the geometric sequence 1024, –512, 256, . ...

May 21, 2012 · Different numbers x, y and z are the first three terms of a geometric progression with common ratio r, and also the first, second and fourth terms of an arithmetic progression. a. Find the …

Jan 19, 2009 · The first step in a geometric sequence or series problem is to find the “common ratio,” r. Take any two consecutive terms and divide the “later” term by the “earlier” term.

Apr 30, 2025 · The answer given is "related to the condition of r in the sum of to infinity of a geometric sequence " That sounds more like a hint than an answer or a solution. Of course, this is not a …

Sep 12, 2012 · 1. Determine the missing terms t2, t3, and t4 t1= 8.1 t5= 240.1 I am trying to solve this but something is not working for me :/ tn (tn-1)r TO TRY AND...

Oct 11, 2011 · A) 133.7 b)163.7 c) 185.0 d) 188.7 e) 196.0 If it helps I'm in math 12. I have a sheet with formulas ,but they are just basic geometric sequence formulas. Click to expand... Draw yourself a …