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# I need help in math!! its alg2- sequences and series?

What is the next term of the sequence 21, 15, 9, 3, . . . ?

a. 1

b. 0

c. -3

d. -6

What is the next term of the sequence 9, 6, 4, 8/3, . . . ?

a. 2/3

b. 16/3

c. 8/9

d. 16/9

What are the next two terms of the sequence 32, -48, 72, -108, . . . ?

a. -162, 189

b. 162, -189

c. -162, 243

d. 162, -243

What are the next two terms of the sequence 55, 70, 85, 100, . . . ?

a. 115, 130

b. 130, 145

c. 120, 140

d. 125, 150

What is the twenty-fifth term of the arithmetic sequence with a1 = -1 and d = -10?

a. -240

b. -241

c. -250

d. -251

What is the twenty-ninth term of the arithmetic sequence with a1 = 13 and d = -5/2?

a. 88

b. 83

c. -57

d. -62

What are the two arithmetic means between -13 and 8?

a. -6, 1

b. -5, 2

c. -4, 3

d. -3, 4

What are the missing terms of the arithmetic sequence -8, , , 3?

a. -4, 1

b. -5, 0

c. -10/3, -1/3

d. -13/3, -2/3

What is Sn for the arithmetic series with a1 = 3, an = -38, and n = 8?

a. -102

b. -140

c. -178

d. -280

What is Sn for the arithmetic series with d = -4, an = 27, and n = 9?

a. 360

b. 387

c. 418

d. 451

What is the sum of the arithmetic sequence ?

a. 729

b. 784

c. 841

d. 900

What is the tenth term of the geometric sequence with a4 = 16 and r = 2?

a. 1024

b. 512

c. 256

d. 128

What is the hundredth term of the geometric sequence with a10 = -1 and r = -1?

a. 1

b. -1

c. 100

d. -100

What are the two geometric terms between 2 and 1/4?

a. 17/12, 5/6

b. 5/4, 1/2

c. 1, 1/2

d. 1, 0

What are the missing terms of the geometric sequence -3, , , -375?

a. -127, -251

b. 127, 251

c. -15, -75

d. 15, 75

What is Sn of the geometric series with a1 = 4, an = 256 and n = 4?

a. 84

b. 260

c. 336

d. 340

What is Sn of the geometric series with a1 = -81, r = -2/3, and n = 5?

a. -55

b. -39

c. 26

d. 211

What the sum of the geometric sequence ?

a. 240

b. 363

c. 726

d. 9330

What is the sum of the infinite geometric series with a1 = 27 and r = -4/5?

a. 11

b. 15

c. 135

d. does not exist

What is the sum of the infinite geometric series with a1 = 42 and r = 6/5?

a. 105

b. 19

c. -210

d. does not exist

What is the sum of the infinite geometric series 1/3 + 1/9 + 1/27 + . . . ?

a. 1/2

b. 3/4

c. 1

d. does not exist

What is the fifth term of the binomial expansion (x + y)7?

a. 21x5 y2

b. 35x3 y4

c. 35x4 y3

d. 21x2 y5

What is the third term of the binomial expansion (2x + y)6?

a. 192x5 y

b. 160x3 y3

c. 240x4 y2

d. 60x2 y4

What is the fourth element in the seventh row of Pascal's triangle?

a. 10

b. 15

c. 20

d. 35

What is the sixth element in the tenth row of Pascal's triangle? For example, if we wanted to identify the second element in the fourth row, it would be a 6. This is because we use the position number to find an element in a given row.

a. 56

b. 126

c. 210

d. 256

### 1 Answer

- Anonymous1 decade agoFavorite Answer
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