contestada

Determine whether the sequence 7, 21, 35, 49 is geometric. If so, find its common
ratio.
Answer:
a. no
b. yes, common ratio of 14
c. yes, common ratio of 2

Respuesta :

Answer:

B

Step-by-step explanation:

MathPhys

Answer:

a. no

Step-by-step explanation:

The sequence is arithmetic.  It has a common difference of 14.

7 + 14 = 21

21 + 14 = 35

35 + 14 = 49

A geometric series has a common ratio (multiplication).  For example:

7 × 3 = 21

21 × 3 = 63

63 × 3 = 189

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