Answer question 59. Use summation equations. please write out the steps and describe in detail what you are doing during each step. 5.25R45. 8,48. 8, 6, 4,...49. a₂ = 9, a4 = 1350.51 9₁ =51, a₁ =10, a10 = 5.552. a₁ = -8, a10 = -1.25 53.54. Concept Check Is this statement accurate?To find the sum of the first n positive integers, find half the pEvaluate each sum as described. See Example 7(b).ha55. the sum of the first 80 positive integers56. the sum of the first 120 positive integers57. the sum of the first 50 positive odd integers58. the sum of the first 90 positive odd integers59, the sum of the first 60 positive even integers60. the sum of the first 70 positive even integersFind a, and d for each arithmetic series. See Example 8.61, $20= 1090, 420 = 10262. S31 558063. S16-160, a16 = -2564. S25= 650,65. S12=-108, 12 = -1966. S31620,

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Math

Calculus

Answer

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section10.2: Arithmetic Sequences

Problem 68E

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Question

Answer question 59. Use summation equations. please write out the steps and describe in detail what you are doing during each step.

5.25
R
45. 8,
48. 8, 6, 4,...
49. a₂ = 9, a4 = 13
50.
51 9₁ =
51, a₁ =
10, a10 = 5.5
52. a₁ = -8, a10 = -1.25 53.
54. Concept Check Is this statement accurate?
To find the sum of the first n positive integers, find half the p
Evaluate each sum as described. See Example 7(b).
ha
55. the sum of the first 80 positive integers
56. the sum of the first 120 positive integers
57. the sum of the first 50 positive odd integers
58. the sum of the first 90 positive odd integers
59, the sum of the first 60 positive even integers
60. the sum of the first 70 positive even integers
Find a, and d for each arithmetic series. See Example 8.
61, $20= 1090, 420 = 102
62. S31 5580
63. S16-160, a16 = -25
64. S25= 650,
65. S12=-108, 12 = -19
66. S31620,

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