Answer:
the dishes sparkled after we washed them.
Step-by-step explanation:
If you look at the shape you see it has four triangles just find the area of them then add them together.
answer 11.6 repeating or 11 and 2/3
Answer:
CI=[0.8592,0.9402]
Yes, Method appears to be effective.
Step-by-step explanation:
-We first calculate the proportion of girls born:
![\hat p\frac{x}{n}\\\\=\frac{333}{370}\\\\=0.9](https://tex.z-dn.net/?f=%5Chat%20p%5Cfrac%7Bx%7D%7Bn%7D%5C%5C%5C%5C%3D%5Cfrac%7B333%7D%7B370%7D%5C%5C%5C%5C%3D0.9)
Since np
, we assume normal distribution and calculate the 99% confidence interval as below:
![CI=\hat p\pm z\sqrt{\frac{\hat p(1-\hat p)}{n}}\\\\=0.9\pm2.576\sqrt{\frac{0.9\times 0.1}{370}}\\\\=0.9\pm 0.0402\\\\={0.8598, \ 0.9402]](https://tex.z-dn.net/?f=CI%3D%5Chat%20p%5Cpm%20z%5Csqrt%7B%5Cfrac%7B%5Chat%20p%281-%5Chat%20p%29%7D%7Bn%7D%7D%5C%5C%5C%5C%3D0.9%5Cpm2.576%5Csqrt%7B%5Cfrac%7B0.9%5Ctimes%200.1%7D%7B370%7D%7D%5C%5C%5C%5C%3D0.9%5Cpm%200.0402%5C%5C%5C%5C%3D%7B0.8598%2C%20%5C%200.9402%5D)
Hence, the confidence interval is {0.8598, 0.9402]
-The probability of giving birth to a girl is 0.5 which is less than the lower boundary of the confidence interval, it can be concluded that the method appears to be effective.
We Know, perimeter of square = 4* side length
P = 4 *(x+6)
P = 4x+24
So, your final answer is 4x+24
Hope this helps!
X^2+11x+24-50=0
X^2+11x-26=0
(X+13)(x-2)=0
X=-13 and x=2