For the sequence -28,-16,-4,8,... The expression that defines the nth term where a 1 =-28 is 12 - 28n 2 12 - 28(n - 1) 3. - 28 +
12n - 28 + 12(n - 1) Submit Answer
1 answer:
Answer:
a₁ = -28
aₙ = a₁ + 12 (n-1)
Step-by-step explanation:
a₁ = -28
a₂ = -28 + 12 (2 - 1) = -16
a₃ = -28 + 12 (3 - 1) = -4
a₄ = -28 + 12 (4 - 1) = 8
aₙ = a₁ + 12 (n-1)
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Answer:
b
Step-by-step explanation:
mean = sum/n
mean = (5 + 7 + 7 + 9 + 12 + 16 + 21)/7
mean = 77/7
mean = 11
x over 5 becuase the top and bottom are both divisible by 8 so you do that.
It’s c because I got it right on the test
Answer:
11/2
Step-by-step explanation:
when,
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