<span>the answer:
the interpreted function is S(t) =9t-4, t = time in days, and S = number of people in thousands. The question consists of finding the value of S(4) and its meaning; for that, we replace the value of t by 4, in the equation S(t) = 9t -4, that is S(4) = 9*4-4=36-4=32, S(4) =32, in every four hours, 32 thousands people is attacked by swine flu. To find the value of t, when S(t)= 23, we have 9t-4 = 23, and then 9t= 23+4=27, t =27 / 9 = 3 so t = 3. S(t) = 23 does mean the value of time when 23 thousands of people is attacked by flu.</span>
Check the picture below, notice the distance from the focus to the directrix
bear in mind that, the vertex is a distance "p" from the focus point and a distance "p" from the directrix, that simply means, the vertex is half-way between both of those fellows
in this case, the focus point is above the directrix, that means, the parabola is vertical and opens upwards, "p" is a positive number for the focus/point form
so.. check the graph, you know what h,k are, and p, so, plug them in
Answer:
You didn'ttell us the question
Step-by-step explanation:
where is the question?
Answer:
C. $108
Step-by-step explanation:
Let;
Total amount = x
Brenda = (4/14)x = y
equation 1
4x = 14y
x = 14y/4
equation 2
Tina and Rita = (3/14)x + (7/14)x = y + 162
10x/14 = y + 162
10x = 14(y+162)
10x = 14y+2268
10*(14y/4) = 14y+2268
140y/4 = 14y+2268
140y = 4(14y+2268)
140y = 56y+9072
140y-56y = 9072
84y = 9072
y = 9072/84
y = 108
But;
x = 14y/4
x = (14*108)/4
x = 378
Brenda = 4/14 * 378 = 108