6. Determine the sum of the first 20 terms of the arithmetic series in which a) the first term is 8 and the common difference is 5 b) 1 = 31 and t20 = 109 c) 1 = 53 and z = 37 d) the 4th term is 18 and the terms increase by 17 e) the 15th term is 107 and the terms decrease by 3 f) the 7th term is 43 and the 13th term is 109

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A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

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A: Sol

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A: 75, 025 is in what term of a Fibonacci sequence?

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Q: 6. Determine the sum of each geometric series. a) 27+ 9 + 3 + + 1 243 b) 7 + 3.5+ 1.75 + ... + 0.109…

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Q: a) Find the second and the ninety-seventh term of the sequence 8 15 22 29 ( 18' 33' 48 ' 63 the…

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Q: Find a, of an arithmetic sequence when a, =-46 and 12. a10 =-91. a) - 5 b) – 10 d) 16 5 6

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 5) Find the value of the infinite geometric series. a) 500 - 100 + 20- 4+...

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Q: a) a geometric sequence. b) a harmonic sequence. c) an alternating sequence. d) a Fibonacci…

A: Solve the above questions.

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A: We will use formulas for A.P. and G.P. mentioned below with answers.

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A: a=3  &  r=12. i. Eighth term is, T8=ar7    ∵Tn=arn-1=3127=3128

Q: 1. Consider the sequence a = = {3,15, 75, 375, 1875, ...} a. What is the common ratio? b. What are…

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Q: 1) In an AP the 9th Term is 73 and the 4th Term is 43. What is the sum of the first twenty terms?…

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