Lucas conducted an experiment on the rate of water evaporation. he placed 500 ml of water in a measuring cup at room temperature and collected data on the amount of water in cup every day if the week. his result are shown in the data table to the righta. what is the rate of change in the amount of water in the cupb. at the same rate of evaporation how many days will it take for all of the water to evaporate

Exercise: counting committees 0.0/2.0 puntos (calificable) we start with a pool of n people. a chaired committee consists of k≥1 members, out of whom one member is designated as the chairperson. the expression k(nk) can be interpreted as the number of possible chaired committees with k members. this is because we have (nk) choices for the k members, and once the members are chosen, there are then k choices for the chairperson. thus, c=∑k=1nk(nk) is the total number of possible chaired committees of any size. find the value of c (as a function of n ) by thinking about a different way of forming a chaired committee: first choose the chairperson, then choose the other members of the committee. the answer is of the form c=(α+nβ)2γn+δ. what are the values of α , β , γ , and δ ?