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Dmitry_Shevchenko [17]

3 years ago

13

Write the first 5 terms of the arithmetic sequence whose first term is 8 and whose common difference is -6.

1 answer:

n200080 [17]3 years ago

6 0

The formula for arithmetic sequence is given by:
an=a+(n-1)d
where:
an=nth term
a=first term
n=number of terms
thus our first term will be:
a1=8
a2=8+(2-1)(-6)=2
a3=8+(3-1)(-6)=-4
a4=8+(4-1)(-6)=-10
a5=8+(5-1)(-6)=-16
a5=-16
thus the sequence will be:
8,2,-4,-10,-16...

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