In a sequence, the nth term is the sum of the positive divisors of n. What is the 20th term? O 21 O 11 42 O 41

Q: In an arithmetic sequence a1, a2,, an, if the first term is 7 and the common difference is 6, then…

A: here option C is true

Q: Given Arithmetic Sequence a1, a2,·*, ɑn the first term is 25 and the common difference is 3, find…

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Q: 13. 8, 14, 26, 50, ... 14. 2, 6, -18, -54, ...

A: 13. The given sequence is       8, 14, 26, 50, ...

Q: Describe how subsequent terms may be determined and state the next two terms in the sequence: 1 1 1…

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Q: The numbers in the following sequence increase by 14, then by 16, then by 18, etc. Continue this…

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Q: ← Until recently, all area codes had a 0 or a 1 as the middle digit and the first digit could not be…

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Q: A. Write the missing term/s in the given series of numbers. 1. Find the next three terms in: -14,…

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Q: What is the sum of the first 53 terms of the series 16 + 23 + 30 + --

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Q: How many different three-letter sequences can you make by rearranging the letters {J,A,C,K}?…

A: If we have so many things then we arrange those in a certain order, or without order. But we arrange…

Q: Given the sequence: 5, 12, 19, ... find the 8th term. O 54 O 36 O 61 O 49

A: Given sequence, 5,12,19...

Q: Find the following sum without using a calculator. 1+2+3+4+...+397+398+399+400

A: In this question, we will find the sum without using a calculator.

Q: How many different two-letter sequences can you make by rearranging the letters {J,A,C,K}? Duplicate…

A: We need to find in how many different ways two-letter sequences can be made by rearranging the…

Q: Find the missing term of each arithmic sequence. 14,_,28 98,_,66 65,_,-60

A: This is question of algebra  here arithmetic sequence is  given further calculation is given below

Q: Predict the next number in the sequence, 2, 6, 12, 20, 30, 42, ___? (A) 52 (B) 54 (C) 56 (D) 58 (E)…

A: Given sequence of numbers is: 2, 6, 12, 20, 30, 42, .............. Here we have: 1st term = 2 2nd…

Q: A bag contains the letters A, B, C, D, E, F. You draw three  letters out of the bag (without…

A: Given: Total number of letters = 6 Number of draw letters = 3 Formula: If there are total n letters…

Q: Write an explicit formula for the sequence 14 19 8 29 9, 3'7'5'31 5 n+ 4 2"-1 9 n b. an 2" -1 5n +4…

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Q: Use inductive reasoning to find a pattern, and then make a reasonable conjecture for the next number…

A: Introduction: The given number sequence is: 2, 4, 8, 14, 22, 32, 44, 58.

Q: 10. Determine the 10th term of the Sequence 5/96 , 5/48 , 5/24 , 5/12, ... Enter your answer

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Q: Find the sum of all terms in the Sequence 96,72, 54,...

A: Solution:

Q: Use the formula for the sum of the first n integers to evaluate the sum given below, then write it…

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Q: Find the formula for the n term of the following sequence: 11, 6, -25, -100, -237. th

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Q: In an arithmetic sequence a1, az2, .., an , if the first term is 5 and the common difference is 3,…

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Q: Refer to the sequence below. a. Write an explicit rule for the nth term b. Use the rule to determine…

A: Given , sequence is 2,6,10,14 We have find and explicit rule for the nth term and then find a17 The…

Q: Given the sequence of "-2, -5,-8,-11, ...". Determine the sum of its first 20 terms. -590 O None of…

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