Which best describes the relationship between the successive terms in the sequence shown?9, - 1, - 11, - 21, ...

a. the common difference is - 10.

b. the common difference is 10.

c. the common ratio is - 9.

d. the common ratio is 9.2. a sequence is defined recursively using the formula f (n 1) = f (n) - 5. which sequence could be generated using this formula?

a. 1, - 5, 25, - 125, ...

b. 2, 10, 50, 250, ...

c. 3, - 2, - 7, - 12, ...

d. 4, 9, 14, 19, ...

Question

Abbigail Dean

Mathematics

12 March, 01:55

Which best describes the relationship between the successive terms in the sequence shown?9, - 1, - 11, - 21, ...

a. the common difference is - 10.

b. the common difference is 10.

c. the common ratio is - 9.

d. the common ratio is 9.2. a sequence is defined recursively using the formula f (n 1) = f (n) - 5. which sequence could be generated using this formula?

a. 1, - 5, 25, - 125, ...

b. 2, 10, 50, 250, ...

c. 3, - 2, - 7, - 12, ...

d. 4, 9, 14, 19, ...

+2

Answers (1)

Know the Answer?

Markus Hoffman · Answer 1

hello:

the arithmetic sequence 9, - 1, - 11, - 21 has common difference:

d = (-21) - (-11) = (-11) - (-1) = (-1) - (9) = - 10

sequence is defined recursively using the formula f (n + 1) = f (n) - 5 (arith - seq)

is : C) 3, - 2, - 7, - 12, ...

because : (-12) - (-7) = (-7) - (-2) = (-2) - (3) = - 5 = d (common difference)