determine the 25th term of an ap whose 9th term is -6 and common diff is 5/4
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Answer:
The common difference d in the sequence is 9-4=5. ... So the 25th term in your sequence is the first term, plus the common difference 24 times: 4 + 24(5) = 4+120 = 124. Answer for part a: the 25th term is 124.
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Answer:
T25=14
Step-by-step explanation:
T9=a+8d=-6
d=5/4
T9= a+8(5/4)=-6
=a+10=-6
a=-16
T25=a+24d
=-16+24(5/4)
=-16+30
=14
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