$$\text { Find the critical number(s) of the function. }$$

Q40: <span class="ql-formula" data-value="\text { Find two positive

Q41: A steel pipe is being carried down

Q42: Given <span class="ql-formula" data-value="f (

Q43: The average cost of producing x

Q44: The graph of the first derivative

Q46: Find the local and absolute extreme

Q47: The graph of the derivative

Q48: <span class="ql-formula" data-value="\text { Find the absolute

Q49: For what values of <span

Q50: Find the point(s) of inflection of