Since it is a perfect square trinomial, it is of the form:
a^2x^2-2abx+b^2 which simplifies to (ax-b)^2
Therefore:
sqrt(a)=sqrt(25)=5
sqrt(b)=sqrt(36)=6
Plug in a and b:
(ax-b)^2
(5x-6)^2
Test to make sure it did fit the formula:
-2abx=-60 (where x is 1)
-2(5)(6)=-60
-2(30)=-60
-60=-60
Answer:
(5x-6)^2

For

the derivative is negative.
For

the derivative is positive.
Therefore at

there's a minimum.
It’s the second one because it’s 2x the measurement of the smaller graph
20 hours times $9 is $180. She would have to work over 20 hours to earn more than $180.
I would say 21 hours.
Answer:
1/2. (0.5)
My apologies for no explanation, I just put it in my calculator.