Find the area of the following shape. you must show all work to receive credit. figure abcdef is shown. a is located at negative 2, 6. b is located at negative 5, 2. c is located at negative 2, negative 3. d is located at 4, negative 3. e is located at 5, 3. f is located at 1, 3.

Yvaries directly as x. y =90 when x=6. find y when x=13

What multiplys to be 1 but adds up to be 4

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 ?