plz answer my question... i will mark u as a brainilist
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Answered by
0
Answer:
50
Step-by-step explanation:
Answered by
0
Answer:
-32
Step-by-step explanation:
AP = 10, 7, 4, ........ -62
a = 10
d = 7 - 10 = -3
an = -62
an = a + (n - 1)d
10 + (n - 1)(-3) = -62
10 - 3n + 3 = -62
13 - 3n = -62
3n = 13 + 62
3n = 75
n = 25
so there are total 25 terms in the AP
Now, 11th term from right = 25 - 11 + 1 = 15th term frm left.
a15 = a + 14 d
= 10 + 14*(-3)
= 10 - 42
= -32
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