Answer:
a₁₃ = - 27x - 41
Step-by-step explanation:
The nth term of an arithmetic sequence is
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = - 3x + 7
d = a₂ - a₁ = - 5x + 3 - (- 3x + 7)
= - 5x + 3 + 3x - 7
= - 2x - 4
Then
a₁₃ = - 3x + 7 + 12(- 2x - 4)
= - 3x + 7 - 24x - 48
= - 27x - 41
11/12
simplificado
de nada
He would spend $65.80 on 20 gallons of gas.
Answer: 172
Step-by-step explanation:
If what I did is right, the answer is 172.2 since 41/5 is 8.2 and I multiply 8.2 times 21, I get 172.2, which rounds to 172.
Answer: 3
Step-by-step explanation: