He function f(x) = -x2 - 4x + 5 is shown on the graph. Which statement about the function is true?
14
12+
(-2,9)
- 60
O The domain of the function is all real numbers les
than or equal to -2.
O The domain of the function is all real numbers les
than or equal to 9
O The range of the function is all real numbers less
than or equal to -2
o The range of the function is all real numbers less
than or equal to 9
4
2
-7 6 5 4 -3 -2 -12
12
3 4 5 6 7
1
-6
99
-10
-12
-14

If the line in the graph is shifted up two units which is the equation of the new line

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 ?

Ashop has a sale that offers 20% off all prices. on the final day they reduce all the sale prices by 25% linz buys a ratio on the day. work out the overall percentage reduction on the price of the ratio