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vivianrush
Find the 50th term of the sequence 5, –2, –9, –16, ... –352 –343 –338 –331
5. Find the 50th term of the sequence 5, –2, –9, –16, ... (1 point) (0 pts) –352 (0 pts) –343 (1 pt) –338 (0 pts) –331 1 /1 point
ok... the sequence is arithmetic so use the formula for a term in an arthmetic sequence \[T_{n} = a + (n - 1) d\] a= 1st term, n = number of terms d = common difference so \[T_{50} = 5 + (50 -1) \times (-7)\] just evaluate for the answer
a1 would be the first term(5) nth term = 50 an=a1+(n-1)(d) a50=5+(50-1)(-7) a50=5-7(49)= -338