Question 5 (5 points) What's the rule that represents the sequence 13, 27, 41, 55, ...? O A) an: 14 + 13 (n1) O B) an: 13 + 14 (n1) O C) an: 13 14 (n1) O D) an = 13 14 (n1) Question 6 (5 points) Find the sum of the first 6 terms of the sequence: 3, 1, 5, 9, . . . 0A) 25 QB) 42 OC) 48 OD) 45 Question 13 (5 points) Find the 10th term in a sequence whose general term is an = n2 8. O A) 108 O B) 113 O C) 92 O D) 12 Question 14 (5 points) What's the sum of ten terms of a finite arithmetic series if the first term is 13 and the last term is 89? O A) 490 O B) 520 O C) 500 O D) 510 Question 7 (5 points) What's the explicit rule for the sequence 9, 14, 19, 24, ...? O A) an = 9 + 5(n - 2) O B) an = 14 + 5(n - 2) O C) an = 9 + 5(n - 1) O D) an = 24 - 5 (n - 1) Question 8 (5 points) Identify the recursive formula for the sequence 20, 28, 36, 44, .. . . O A) () = (f(1) = 20 Is (n ) = 1 (n - 1) - 8 ifn>1 O B) f (m) = $5(1) = 20 Is (n ) = 1 (n - 1 ) + 8 ifn>1 O c) (m)= $(1) = 20 is (n ) = 1 ( n - 1 ) + 8 ifn > o O D) , (m) = /f(1) = 20 (s (n ) = $ ( n - 1 ) - 8 in >0Question 17 (5 points) Which of the following is a geometric sequence with a common ratio of 2? O A) 14, 28, 56, 112, O B) 1416, 18, 20, O C) 64, 32, 16, 8, O D) 87, 85, 83, 81, Question 18 (5 points) What's the sum of an infinite geometric series if the first term is 81 and the common ratio is 2/3 ? O A) 243 O B) 567 O C) 729 O D) 135 Question 1 (5 points) Find the 5th term in a sequence whose general term is an = 3n + 7. 0/9025 OB)22 QC)17 0mg Question 2 (5 points) Write an exponential equation for the geometric sequence 1, 10, 100, 1000, O A) an = 10(1)\"1 0 B) a = 10(o.1)\"1 n O C) an = 1(10)\"'1 0 D) a = 10m)"1 n Question 19 (5 points) Given the recursive formula shown, what are the first 4 terms of the sequence? _f[1):6 .fl"l*;, ' ,Jlnlulnvnddnu O A) 6, 42, 294, 2,058 O B) 7,13,19,25 O C) 6,1,8,15 O D) 6, 13, 20, 27 Question 20 (5 points) Alex started a new social media account, which he uses to post pictures of cute animals. On the first day, he had only 8 followers. However, his account became popular very quickly and the number of followers tripled every day. Identify how many followers he had on the 5th day. Q A) 648 O B) 1,944 O C) 5,832 O D) 12,288 Question 9 (5 points) Find the sum of Ex=1 (2k - 3). O A ) 4 ( B) 3 Oc) 1 O D) 5 Question 10 (5 points) Which of the following is equivalent to E=. ax? ( A) an + a2 + 23 + 24 + 25 B ) at an + ant ... O can taz+ at... + 2.. ( D) ap + an + a2 + a3 + a4 + 25Question 11 (5 points) A sequence consists of the positive odd integers 1, 3, 5,. What's the sum of the first 12 terms of the sequence? 0 A) 115 Q B) 169 O C) 121 O D) 144 Question 12 (5 points) Which of the following is an arithmetic sequence? 0 A) 1, 3,9, 27, 81,... O B) 2, 4, 8,16,32,... Q C) 0,5,11,18,24,... O D) 0,6,12,18,24,... Question 15 (5 points) Identify the first 4 terms in the arithmetic sequence given by the explicit formula f(n) = 8 + 3(n - 1). ( A) 3, 11, 19, 27 ( B) 8, 11, 14, 17 O C) 3, -5, -13, -21 O D) 8, 5, 2 , - 1 Question 16 (5 points) Which of the following is an arithmetic sequence where a1 = 9 and d = 7? O A) 7, 16, 25, 34 , 43 , . .. ( B) 0, 7, 14, 21, 28, . .. O c) o, 9, 18, 27, 36 , ... O D) 9, 16, 23, 30, 37, ...QuestionI S (5 points) Identify the common ratio of the sequence: 400, 200, 100, 50, . . . A) 1/2 ( B) 1/4 ( C) 4 O D) 2 Question 4 (5 points) Alice is saving to buy a house and currently has $2,000 in her savings account. She's planning to contribute $150 to the account each month. Identify the function that describes the relationship between the number of months that pass (n) and the balance of her savings account, f(n). O A) fin) = 2,000 - 150n ( B) An) = 2,000 + 150(n - 1) O c) An) = 2,000 - 150(n + 1) ( D) An) = 2,000n + 150