Thomas Foster Home Question Completion Status: H Week 6 "Series and Sequences" ? Take Test: W6 Quiz Take Test: W6 Quiz Test Information
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Multiple Attempts Not allowed. This test can only be taken once.
Force Completion This test can be saved and resumed later. Save All Answers Q U E S T I O N 1 Save and Submit 4 points Save Answer Find the indicated term using the given information. a16 = 88, a13 = 73; a1
5
13
18
23 Q U E S T I O N 2 4 points Save Answer Find the sum. 1075
1175
1037.5
1262.5 Q U E S T I O N 3 Find the indicated term of the sequence. 1 Courses 4 points Save Answer Find the indicated term of the sequence. Question Completion Status:
The ninth term of the arithmetic sequence 24, 19, 14, ... ‑21
‑40
64
‑16 Q U E S T I O N 4 4 points Save Answer Find the nth term and the indicated term of the arithmetic sequence whose initial term, a, and
common difference, d, are given. a = ‑3; d = 3 an = ?; a10 = ?
an = ‑6 + 3n; a10 = 24
an = ‑6 + 3n; a10 = 36
an = ‑6 ­ 3n; a10 = 24
an = ‑3 + 3n; a10 = 24 Q U E S T I O N 5 4 points Save Answer Find the fifth term and the nth term of the geometric sequence whose initial term, a, and
common ratio, r, are given. a = 4; r = 3π
a5 = 972π5, an = 4 ∙ 3nπn a5 = 324π, an = 4 ∙ 3n‑1π
a5 = 324π4, an = 4 ∙ 3n‑1πn‑1 a5 = 4 + 12π, an = 4 + 3π(n­1) Q U E S T I O N 6 4 points Save Answer Find the sum. ­3 + 1 + 5 + 9 + 13 + ... + (4n ­ 7)
n(2n + 5)
n(2n ­ 5)
n(4n + 7)
n(4n ­ 7) Q U E S T I O N 7 Find the sum. ‑1260 4 points Save Answer ‑1260 Question Completion Status: ‑1120
‑1360
‑1320 Q U E S T I O N 8 4 points Save Answer Find the sum. 3 + 6 + 9 + ... + 294 14553
14259
14406 Q U E S T I O N 9 4 points Save Answer Find the indicated term using the given information. a = 7, d = ‑ ; a41 2 12 Q U E S T I O N 1 0 4 points Save Answer Find the first term, the common difference, and give a recursive formula for the arithmetic
sequence. 6th term is ­10; 15th term is ­46
a1 = ­30, d = 4, an = an‑1 + 4
a1 = ­10, d = ­4, an = an‑1 ­ 4
a1 = 10, d = 4, an = an‑1 + 4
a1 = 10, d = ­4, an = an‑1 ­ 4 Q U E S T I O N 1 1 4 points Save Answer Solve. Suppose you just received a job offer with a starting salary of per year and a guaranteed raise
of per year. How many years will it be before youʹve made a total (or aggregate) salary of ?
25 years
18 years 18 years Question Completion Status: 21 years
20 years 4 points Save Answer Q U E S T I O N 1 2 Find the indicated term using the given information. a48 = ‑ , a26 = ‑ ; a3 ‑ 2
‑ ‑ 1 Q U E S T I O N 1 3 4 points Save Answer Find the first term, the common difference, and give a recursive formula for the arithmetic
sequence. 9th term is ‑68; 15th term is ‑122
a1 = 13, d = ‑9, an = an‑1 ­ 9
a1 = 13, d = 9, an = an‑1 + 9
a1 = 4, d = 9, an = an‑1 + 9
a1 = 4, d = ‑9, an = an‑1 ‑ 9 Q U E S T I O N 1 4 4 points Save Answer Find the fifth term and the nth term of the geometric sequence whose initial term, a, and common
ratio, r, are given. a = ; r = , an = 3n‑1/2 a5 = 81
a5 = 9 , an = 3n/2 a5 = 243, an = 3n a5 = 3 , an = 3n/2‑1 Q U E S T I O N 1 5 Find the sum. 4927.5 4 points Save Answer 4927.5
5040 Question Completion Status: 5332.5
5175 Q U E S T I O N 1 6 4 points Save Answer Find the sum. 192.4
231.75
274.5
42.75 Q U E S T I O N 1 7 4 points Save Answer Find the nth term and the indicated term of the arithmetic sequence whose initial term, a, and
common difference, d, are given. a = 4; d = ‑7 an = ?; a16 = ?
an = 11 ­ 7n; a16 = ‑52
an = 11 ‑ 7n; a16 = ‑101
an = 11 + 7n; a16 = ‑101
an = 4 ­ 7n; a16 = ‑101 Q U E S T I O N 1 8 4 points Save Answer Find the first term, the common difference, and give a recursive formula for the arithmetic
sequence. 10th term is ‑11; 14th term is ‑51
a1 = 79, d = ‑10, an = an‑1 ­ 10
a1 = 89, d = 10, an = an‑1 + 10
a1 = 89, d = ‑10, an = an‑1 ­ 10
a1 = 79, d = 10, an = an‑1 + 10 Q U E S T I O N 1 9 Find the indicated term using the given information. a11 = 6, a18 = 20; a6
2
‑14
‑2
‑4 4 points Save Answer ‑4 Question Completion Status: Q U E S T I O N 2 0 4 points Save Answer Find the first term, the common difference, and give a recursive formula for the arithmetic
sequence. 7th term is 4; 13th term is 16
a1 = ‑10, d = 2, an = an‑1 ­ 2
a1 = ‑10, d = 2, an = an‑1 + 2
a1 = ‑8, d = 2, an = an‑1 ­ 2
a1 = ‑8, d = 2, an = an‑1 + 2 Q U E S T I O N 2 1 4 points Save Answer Find the sum. ‑1008
‑896
‑1088
‑1056 Q U E S T I O N 2 2 4 points Save Answer Solve. A local civic theater has 22 seats in the first row and 21 rows in all. Each successive row contains 3
additional seats. How many seats are in the civic theater?
1070 seats
790 seats
1092 seats
1010 seats Q U E S T I O N 2 3 4 points Save Answer Find the indicated term using the given information. 12, 10, 8, ... ; a26
‑40
64
‑38
62 Q U E S T I O N 2 4 4 points Save Answer Find the fifth term and the nth term of the geometric sequence whose initial term, a, and
common ratio, r, are given. Find the fifth term and the nth term of the geometric sequence whose initial term, a, and
common ratio, r, are given. Question Completion Status: a = ‑6; r = ‑2
a5 = ‑96; an = ‑6 ∙ (‑2)n‑1
a5 = 48; an = ‑6 ∙ (‑2)n
a5 = 48; an = ‑6 ∙ (‑2)n‑1
a5 = ‑96; an = ‑6 ∙ (‑2)n 4 points Save Answer Q U E S T I O N 2 5 Find the indicated term of the sequence. The twenty‑second term of the arithmetic sequence ‑15 , ‑19 , ‑23 , ... 69
73
‑103
‑99 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Save and Submit

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