Find 4 arithmetic means of an arithmetic sequence between 13 and -17
n=
a1=
a2=
a3=
a4=
a5=
pls help:)
n=
a1=
a2=
a3=
a4=
a5=
pls help:)
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Answers & Comments
13, 7, 1, -5, -11, -17
Step-by-step explanation:
an= a1+(n-1)d
-17= 13+ (6-1)d
-17-13=5d
-30=5d
divide by 5 both side
-6=d
13-6= 7
7-6= 1
1-6=-5
-5-(-6)= -11
-11-(-6)= -17