Answer:
Its in there
Step-by-step explanation:
To find the surface area of a regular triangular pyramid, we use the formula SA = A + (3/2)base height, where A = the area of the pyramid's base, b = the base of one of the faces, and h = height of one of the faces
You can find the critical numbers by finding the derivative of the function and solving for 0.
F(x) = x(4/5)(x-6)(2) = x(8/5)(x-6) = (8/5)(x^2 - 6x)
Taking the derivative:
F'(x) = (8/5)(2x - 6)
F'(x) = 0 at x = 3,
critical number = 3
Answer:

Step-by-step explanation:
I'm assuming you're being asked to write an inequality for this situation?
If that's the case, then above is your answer
Hope I could help :)