saren47
22.06.2019 •
Mathematics
Which of the following are geometric sequences (check all that apply)a.) 1, 1, 2, 3, 5, 8, 13b.) 10,5, 2.5, 1.25, 0.625, 0.3125c.) -9, -3, -1, -1/3, -1/9, -1/27d.) 5, 10, 15, 20, 25
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Ответ:
B and C are geometric sequences.
Step-by-step explanation:
A geometric sequence is a sequence of numbers in which the ratio between consecutive terms is constant.
A is not a geometric sequence because the number 1 is repeated twice in the sequence.
B is a sequence because the sequence is being multiplied by 0.5 each time.
C is a geometric sequence because it is being multiplied by 1/3 each time.
D is not a geometric sequence because it is not being multiplied each time - it is increasing by +5 (arithmetic progression - not geometric).
Hope this helps!
Ответ:
yeah cuh not doin that but thanks for them points tho
Step-by-step explanation: