The discriminant of this equation is 49. The solutions for this equation are x=2 and x=-

I hope that helps.
Answer:
A ≈ 172.05
Step-by-step explanation:
i used the google calculator
just search up "area of a pentagon" and google has their own calculator as the first option.
Answer:
See proof below
Step-by-step explanation:
We have to verify that if we substitute
in the equation
the equality is true.
Let's substitute first in the right hand side:

Now we use the distributive laws. Also, note that
(this also works when the power is n-2).



then the sequence solves the recurrence relation.
Answer:
8.550
Step-by-step explanation: