The answer is -34.72. I have attached a picture of the work. I hope this helps. :)
1/2. 50 pennies equals $0.50
Answer:
In case you have not gotten the answer yet it is the chart, -- 3,3,3,2,3,3,3
Step-by-step explanation:
I took the quiz
Answer:
Sample size is ![n=423](https://tex.z-dn.net/?f=n%3D423)
Step-by-step explanation:
Given that,
Margin of error
%
Confidence level
%
Suppose, sample proportion![=0.5](https://tex.z-dn.net/?f=%3D0.5)
i.e. ![\hat{P}=0.5](https://tex.z-dn.net/?f=%5Chat%7BP%7D%3D0.5)
We know that,
Margin of error ![=2^*\sqrt{\frac{\hat{p}(1-\hat{p})}{n} }](https://tex.z-dn.net/?f=%3D2%5E%2A%5Csqrt%7B%5Cfrac%7B%5Chat%7Bp%7D%281-%5Chat%7Bp%7D%29%7D%7Bn%7D%20%7D)
∴ ![1.64\sqrt{\frac{0.5(0.5)}{n} } \leq 4\%](https://tex.z-dn.net/?f=1.64%5Csqrt%7B%5Cfrac%7B0.5%280.5%29%7D%7Bn%7D%20%7D%20%5Cleq%204%5C%25)
![\Rightarrow 1.64\sqrt{\frac{0.25}{n} } \leq 0.04](https://tex.z-dn.net/?f=%5CRightarrow%201.64%5Csqrt%7B%5Cfrac%7B0.25%7D%7Bn%7D%20%7D%20%5Cleq%200.04)
![\Rightarrow \frac{0.5}{\sqrt{n} } \leq \frac{0.04}{1.64}](https://tex.z-dn.net/?f=%5CRightarrow%20%5Cfrac%7B0.5%7D%7B%5Csqrt%7Bn%7D%20%7D%20%5Cleq%20%5Cfrac%7B0.04%7D%7B1.64%7D)
![\Rightarrow \frac{0.5}{\sqrt{n} } \leq 0.0243](https://tex.z-dn.net/?f=%5CRightarrow%20%5Cfrac%7B0.5%7D%7B%5Csqrt%7Bn%7D%20%7D%20%5Cleq%200.0243)
![\Rightarrow \sqrt{n}\geq \frac{0.5}{0.0243}](https://tex.z-dn.net/?f=%5CRightarrow%20%5Csqrt%7Bn%7D%5Cgeq%20%5Cfrac%7B0.5%7D%7B0.0243%7D)
![\Rightarrow \sqrt{n}\geq 20.57](https://tex.z-dn.net/?f=%5CRightarrow%20%5Csqrt%7Bn%7D%5Cgeq%2020.57)
squaring on both side,
∴ ![n=423.1249](https://tex.z-dn.net/?f=n%3D423.1249)
Hence, the sample size is,
![n=423](https://tex.z-dn.net/?f=n%3D423)
Hence, the correct option is ![(b).](https://tex.z-dn.net/?f=%28b%29.)
Answer:
the first image has three sides
the second image has 6 sides
the third image i think has 48 sides
Step-by-step explanation: