Answer:
the correct answer is option C
We are given this explicit formula :

In order to find eighth term let us plug n as 8 in this formula:

subtracting 8-1 first using pemdas rule

multiplying 5 and 7

subtracting 35-6
c(8) = 29
So eighth term is 29.
Answer:
The answer to your question is: - 7
Step-by-step explanation:
3125 = (- 1 - 18t) ⁵/³
(3125)³ = ( -1 - 18t)⁵
(3125)³/⁵ = - 1 - 18t
125 = - 1 - 18t
125 + 1 = - 18t
126 = - 18t
t = 126 / -18
t = -7
3125³ = 3.0518 x 10¹⁰
= 125
Eliminate parenthesis by using the distribution property
= 5x² -3x +3 - x² - 2x +1
Group similar terms
= (5-1)*x² + (-3 -2)*x + (3+1)
Then sum everything:
= 4x² -5x +4