Answer:
The sample should be as large as 480
Step-by-step explanation:
Probability of having a flu, p = 43/334
p = 0.129
Margin Error, E = 0.03
Confidence Interval, CI= 95%
At a CI of 95%, ![z_{crit} = 1.960](https://tex.z-dn.net/?f=z_%7Bcrit%7D%20%3D%201.960)
The sample size can be given by the relation:
![n = p(1-p)(z/E)^{2}](https://tex.z-dn.net/?f=n%20%3D%20p%281-p%29%28z%2FE%29%5E%7B2%7D)
![n = 0.129(1-0.129)(1.960/0.03)^{2} \\n = 479.59\\n = 480](https://tex.z-dn.net/?f=n%20%3D%200.129%281-0.129%29%281.960%2F0.03%29%5E%7B2%7D%20%5C%5Cn%20%3D%20479.59%5C%5Cn%20%3D%20480)
Translation by h right and k up: f(x-h)+k.
Vertically scale by k and reflect across the x-axis: -k·f(x).
After the translation, your function is
f(x) = (x-2.5)² -7
After the scaling and reflection, your function is
f(x) = (-2/5)((x -2.5)² -7)
Circle C
hope this helped!
Answer:
23,24,25,26
Step-by-step explanation:
well because it says =20 and the bottom one has a 6 and so does the space the that means 3+20+23
I don't know either because I don't know what the e equals to