goodcharlotte20
goodcharlotte20 goodcharlotte20
  • 12-01-2017
  • Mathematics
contestada

The 12th term of an arithmetic sequence is 36, and the common difference is 3. What is the first term of the sequence?
A. 1
B. 2
C. 3
D. 4

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 12-01-2017
an=a1+d(n-1)
d=3
a12=36

a12=a1+3(12-1)
36=a1+3(11)
36=a1+33
minus 33 both sides
3=a3


C is answer
Answer Link
devonforrestvlo
devonforrestvlo devonforrestvlo
  • 16-06-2018
the answer is c on edgunity
Answer Link

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