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1)

(1 point) For each sequence, find a formula for the general term, An. For example, answer n if given the sequence 11,4,9, 16, 25,36, 3 4 5 6 16 25 36 49... 1. 1/(2An) 2 4 8 162)

(1 point) Calculate S3, S4, and S, and then find the sum for the telescoping series s-Σ where S is the partial sum using the first k values of n. S5

3)

1 point) Find the first term and the common difference of the arithmetic sequence whose 4th term is 28 and 19th term is 73. First term is Common difference is

4)

(1 point) An auditorium has 63 rows of seats. The first row contains 90 seats. As you move to the rear of the auditorium, each row has 4 more seats than the previous row How many seats are in row 49? How many seats are in the auditorium?5)

(1 point) Is the sequence an 37n arithmetic? Your answer is (input yes or no) it your answer is yes, its first term is its common difference is

6)

(1 point) Find the numerical value of the sums below. 100 k-1 105 (b) >20 - k= 1 85 k-1

7)

16 (1 point) Σ k- k-1

8)

(1 point) Evaluate Σ8k-9)(5k + 7) k-1

9)

(1 point) Match the sum formulasSm with the indicated sequences an. They are to hold true for all positive integers n. n(3n-1 2 2. an -2 3, a,-3n-2 n(n +1) (2n C. Sn 2(2 -1) nin ann

10)

(1 point) Express the following sum in closed form. $(4) 5+4. Hint: Start by multiplying out 5 +4 Note: Your answer should be in terms of n.

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