First, we need to solve for the common ratio from the data given by using the equation.
a(n) = a(1) r^(n-1)
15 = -3 r^(2-1)
-5 = r
r = -5
Then, we can find the sum by the expression:
S(n) = a(1) ( 1 - r^n) / 1-r
S(8) = -3 (1 + 5^8) / 1+5
S(8) = -195313
Answer:
5 but its probaly not right bc im just looking for pointsStep-by-step explanation:
Answer:
a. infinite solutions, answer is x = 30, identity equation
b. no solution, a contradiction equation
c. no solution, a contradiction equation
Step-by-step explanation:
Answer:
x = 3 / 16
Step-by-step explanation:
Simplify first:
x - 1 / 16 = 1 / 8
x = 3 / 16
Answer:
b on edge
Step-by-step explanation:
