Answer:
b = -6
Step-by-step explanation:
We use the general equation a*x^2 + bx + c = 0, the Quadratic Equation.
Compare it to 2x^2 - 6x - 20 = 0
b = -6 here
Answer:
Picture attached below.
Step-by-step explanation:
I hope it helps.
Answer:
number 2
Step-by-step explanation:
Answer:
Option (1)
Step-by-step explanation:
In a geometric series,

Here r = 
For |r| < 1, series will converge.
For |r| > 1, series will diverge.
Option (1)
Given geometric series is,

Common ratio = 
= 
Since,
Series will converge.
Option (2)

r = 
Since, 2 > 1,
Series will diverge.
Option (3)

Common ratio 'r' = 
Since, 3 > 1,
Series will diverge.
Option (4)

Common ratio 'r' = 
Since, 6 > 1
Series will diverge.
Therefore, Option (1) will be the correct option.
I think that x would be 1.5.
6 = 4x, 6/4 = 1.5, so 1/5 = x