3.1 Sequences and Series

Find the 12th term of the arithmetic sequences 5, 11, 17, 23,..

• 70

• 71

• -71

• -70

Tags

CCSS.HSF.BF.A.2

CCSS.HSF.LE.A.2

Find the 15th term of the arithmetic sequences -3, -8, -13,..

• -70

• -73

• 70

• 73

Tags

CCSS.HSF.BF.A.2

CCSS.HSF.IF.A.3

CCSS.HSF.LE.A.2

Find the 7th term of the arithmetic progressions $\frac{2}{3},\frac{6}{5},\frac{26}{15},...$  

• -58/15

• -50/15

• 58/15

• 50/15

Tags

CCSS.HSF.BF.A.2

Find the sum of the first 9 terms of arithmetic progressions 21, 15, 9,...

• -27

• 27

• -20

• 20

Tags

CCSS.HSF.BF.A.2

CCSS.HSF.LE.A.2

Find the sum of the first 18 terms of arithmetic progressions -8, 0, 8,...

• -1080

• -1800

• 1800

• 1080

Tags

CCSS.HSF.BF.A.2

Find the sum of the arithmetic progressions 7, 9, 11,...,79. (Hint: find Tn first)

• 1591

• -1591

• -1590

• 1590

Tags

CCSS.HSF.BF.A.2

CCSS.HSF.IF.A.3

CCSS.HSF.LE.A.2

Find the sum of the arithmetic progressions 0.05, 0.15, 0.25, ..., 4.05. (Hint: find Tn first)

• -84

• 84

• -84.05

• 84.05

Tags

CCSS.HSF.BF.A.2

CCSS.HSF.IF.A.3

CCSS.HSF.LE.A.2

In an arithmetic sequence, the fifth term is 34 and the tenth term is 43. Find the sum of the first 20 terms of the sequence.

• 878

• -878

• 787

• -787

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.A.1

CCSS.HSF.BF.A.2

CCSS.HSF.LE.A.2

The first three terms of an arithmetic sequence are m, 2m+n, 3m+2n,... Find the tenth term in terms of m and n.

• 10m-9n

• -10m-9n

• 10m+9n

• -10m+9n

Tags

CCSS.HSF.BF.A.2

CCSS.HSF.IF.A.3

CCSS.HSF.LE.A.2

The third term of an arithmetic sequence is 12 and the sum of the first eight terms is 168. Find the 14th term.

• 78

• -78

• -70

• 70

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.A.1

CCSS.HSF.BF.A.2

CCSS.HSF.IF.A.3

CCSS.HSF.LE.A.2