Answer:
6s
Step-by-step explanation:
Answer:
Critical value f(1)=2.
Minimum at (1,2), function is decreasing for
and increasing for 
is point of inflection.
When 0<x<3, function is concave upwards and when x>3, , function is concave downwards.
Step-by-step explanation:
1. Find the domain of the function f(x):

2. Find the derivative f'(x):

This derivative is equal to 0 at x=1 and is not defined at x=0. Since x=0 is not a point from the domain, the crititcal point is only x=1. The critical value is

2. For
the derivative f'(x)<0, then the function is decreasing. For
the derivative f'(x)>0, then the function is increasing. This means that point x=1 is point of minimum.
3. Find f''(x):



When f''(x)=0, x=3 and
When 0<x<3, f''(x)>0 - function is concave upwards and when x>3, f''(x)>0 - function is concave downwards.
Point
is point of inflection.
Answer:
4 hours
Step-by-step explanation:
33/11 = 3 hours
Plus 1-hour lunch break
Total is 4 hours
Multiply through by 7:-
3x - 14 = 105
3x = 119
x =119/3 = 39 2/3
I hope this helps you
x^2-5x-6
x -6
x +1
(x-6)(x+1)
x^2+5x-6
x +6
x -1
(x+6)(x-1)