Point B is on line segment \overline{AC} AC . Given AC=2x+7,AC=2x+7, BC=x, BC=x, and AB=5x-9,AB=5x−9, determine the numerical length of \overline{AB}. AB

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

Suppose that g(x)=f(x+9) which statement best compares the graph of g(x) with the graph of f(x)

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 ?