cogger9348
26.12.2021 •
Mathematics
What is the common difference in the sequence below? 9, 2, -5, -12,
Select one:
a. -5
b. -6
c. -8
d. -7
Solved
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Ответ:
-7
Step-by-step explanation:
a=9 a2=2 a3=-5 a4=-12
d = a4-a3 ,a3-a2, a2-a.
so:
d = -12-(-5) =-12+5 =-7
also;
d = -5-2 = -7
and
d= 2-9 =-7
so the common difference is -7
Ответ:
Step-by-step explanation: