Show that compactness is necessary in Corollary 3.5.8. That is, find a family of intervals {An :n∈N}withAn+1 ⊆An foralln,[infinity]n=1An =∅,andsuchthat

Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27