Answer:
10
Step-by-step explanation:
5/x = 4/8
Cross multiply
4*x = 5*8
4x = 40
x = 10
Answer is 10
You are correct
Answer:

Step-by-step explanation:
We first need to know the square root of I then add 10 on that square root since r is 10 more than the square root of I
Therefore,

The quadratic has one root with multiplicity 2 if the discriminant is 0, which is

(That is, for a quadratic
, the discriminant is
.)
Set the discriminant equal to 0 and solve for
:





Answer:
As shown in picture,
Option 2 is correct.
Horizontal asymptote at y = 0 (graph approaches to 0 when x at -infinity and + infinity)
Option 4 is correct.
Vertical asymptote at x = 6 ( graph goes to infinity when x = 6)
Option 5 is correct.
Vertical asymptote at x = -4 ( graph goes to infinity when x = -4)
Hope this helps!
:)