A road is inclined at an angle of 5º. After driving 4,792 feet along this road, find the driver's increase in altitude. Round to the nearest foot. a. The driver's increase in altitude is 419 feet. b. The driver's increase in altitude is 418 feet. c. The driver's increase in altitude is 526 feet.
d. The driver's increase in altitude is 4,774 feet.​

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 ?