Find the value of the derivative (if it exists) at the indicated extremum. (If an answer does not exist, enter DNE.) f(x) = 4 − |x|

You have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint? you have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint?

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?