This is how I did it:
![5(x + 6) + 11 = 25 - 3x](https://tex.z-dn.net/?f=5%28x%20%2B%206%29%20%2B%2011%20%3D%2025%20-%203x)
use distribution
![5x + 30 + 11 = 25 - 3x](https://tex.z-dn.net/?f=5x%20%2B%2030%20%2B%2011%20%3D%2025%20-%203x)
use addition
![5x + 41 = 25 - 3x](https://tex.z-dn.net/?f=5x%20%2B%2041%20%3D%2025%20-%203x)
use addition and subtraction
![8x = -16](https://tex.z-dn.net/?f=8x%20%3D%20-16)
use division
![x = -16/8](https://tex.z-dn.net/?f=x%20%3D%20-16%2F8)
![x = -2](https://tex.z-dn.net/?f=x%20%3D%20-2)
So your answer is
Answer:
The correct answer is "0.3410, 0.4990".
Step-by-step explanation:
Given values are:
![n=150](https://tex.z-dn.net/?f=n%3D150)
![p=\frac{63}{150}](https://tex.z-dn.net/?f=p%3D%5Cfrac%7B63%7D%7B150%7D)
![=0.42](https://tex.z-dn.net/?f=%3D0.42)
At 95% confidence interval,
C = 95%
z = 1.96
As we know,
⇒ ![E=z\sqrt{\frac{p(1-p)}{n} }](https://tex.z-dn.net/?f=E%3Dz%5Csqrt%7B%5Cfrac%7Bp%281-p%29%7D%7Bn%7D%20%7D)
By substituting the values, we get
![=1.96\sqrt{\frac{0.42\times 0.58}{150} }](https://tex.z-dn.net/?f=%3D1.96%5Csqrt%7B%5Cfrac%7B0.42%5Ctimes%200.58%7D%7B150%7D%20%7D)
![=1.96\sqrt{\frac{0.2436}{150} }](https://tex.z-dn.net/?f=%3D1.96%5Csqrt%7B%5Cfrac%7B0.2436%7D%7B150%7D%20%7D)
![=0.0790](https://tex.z-dn.net/?f=%3D0.0790)
hence,
The confidence interval will be:
= ![p \pm E](https://tex.z-dn.net/?f=p%20%5Cpm%20E)
= ![0.42 \pm 0.079](https://tex.z-dn.net/?f=0.42%20%5Cpm%200.079)
= ![(0.3410,0.4990)](https://tex.z-dn.net/?f=%280.3410%2C0.4990%29)
Answer:
q.4 's answer is d. miles
q.5 's answer is 3
q.6 's answer is 6
can you tell what the dot means i can tell you the other two's too
Answer:
2,880 people
Step-by-step explanation:
Week 1: 3,000 cases
Week 2: 0.4 * 3,000 = 1,200. 1,200 + 3,000 = 4,200
Week 3: 0.4 * 4,200 = 1,680. 1,680 + 4,200 = 5,880
5,880 - 3,000 = 2,880