Answer:
1425 square kilometer.
Step-by-step explanation:
2900 - 8.5% = 2653.5
2653.5 - 8.5% = 2427.9525
2427.9525 - 8.5% = 2221.5765375
2221.5765375 - 8.5% = 2032.74253181
2032.74253181 - 8.5% = 1859.95941661
1859.95941661 - 8.5% = 1701.8628662
1701.8628662 - 8.5% = 1557.20452257
1557.20452257 - 8.5% =1 424.84213815 ≈ 1425
Answer:
Hence, the probability of a Negative test is
.
Step-by-step explanation:
(a)
Let
Drug user and
Test positive
Probability of drug users ![P(D)=36\%=0.36](https://tex.z-dn.net/?f=P%28D%29%3D36%5C%25%3D0.36)
![P(\frac{T}{D})=96\%=0.96](https://tex.z-dn.net/?f=P%28%5Cfrac%7BT%7D%7BD%7D%29%3D96%5C%25%3D0.96)
![P(\frac{T^c}{D^c})=90\%=0.90](https://tex.z-dn.net/?f=P%28%5Cfrac%7BT%5Ec%7D%7BD%5Ec%7D%29%3D90%5C%25%3D0.90)
(b)
Find the Probability of a Negative test,
![P(T^C)=P(\frac{T^C}{D^C})\cdot P(D^C)+P(\frac{T^C}{D})\cdot P(D)](https://tex.z-dn.net/?f=P%28T%5EC%29%3DP%28%5Cfrac%7BT%5EC%7D%7BD%5EC%7D%29%5Ccdot%20P%28D%5EC%29%2BP%28%5Cfrac%7BT%5EC%7D%7BD%7D%29%5Ccdot%20P%28D%29)
![\Rightarrow P(T^C)=0.9\cdot(1-0.36)+(1-0.96)\cdot 0.36](https://tex.z-dn.net/?f=%5CRightarrow%20P%28T%5EC%29%3D0.9%5Ccdot%281-0.36%29%2B%281-0.96%29%5Ccdot%200.36)
![\Rightarrow P(T^C)=0.9\cdot 0.64+0.04\cdot 0.36](https://tex.z-dn.net/?f=%5CRightarrow%20P%28T%5EC%29%3D0.9%5Ccdot%200.64%2B0.04%5Ccdot%200.36)
![\Rightarrow P(T^C)=0.576+0.0144](https://tex.z-dn.net/?f=%5CRightarrow%20P%28T%5EC%29%3D0.576%2B0.0144)
![\Rightarrow P(T^C)=0.5904](https://tex.z-dn.net/?f=%5CRightarrow%20P%28T%5EC%29%3D0.5904)
The number was 160 because 5/4•128=160. 5/4 represents inverting 80% and multiplying it by the number to determine how the result became 128. For checking over all you have to do is do 4/5 or 80%•160 which shall give you 128.
88/8=11.
So multiply 4 by 11.
4x11=44
So the ratio is 88:44.
There are 44 girls at the dance
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hope it helps
Answer:
pi is the answer, because it goes on for every
Step-by-step explanation:
Examples of Irrational Numbers. An irrational number cannot be expressed as a ratio between two numbers and it cannot be written as a simple fraction because there is not a finite number of numbers when written as a decimal. Instead, the numbers in the decimal would go on forever, without repeating.