Surface area of a cylinder=

=5089.38
Answer:
The probability that exactly one photo detector of a pair is acceptable is
.
Step-by-step explanation:
Let the A = first photo detector is acceptable and B = second photo detector is acceptable .
The information provided is:

- The law of total probability states that:

Using the law of total probability determine the probability of B as follows:
- The addition rule of probability is:

Compute the probability that exactly one photo detector of a pair is acceptable using the addition rule of probability as follows:
![P(A\cup B) = P(A) + P(B) - P(A\cap B)\\=P(A) + P(B) - P(B|A)P(A)\\=\frac{3}{5} +\frac{16}{25} -[\frac{4}{5}\times\frac{3}{5}] \\=\frac{3}{5} +\frac{16}{25}-\frac{12}{25}\\=\frac{15+16-12}{25}\\= \frac{19}{25}](https://tex.z-dn.net/?f=P%28A%5Ccup%20B%29%20%3D%20P%28A%29%20%2B%20P%28B%29%20-%20P%28A%5Ccap%20B%29%5C%5C%3DP%28A%29%20%2B%20P%28B%29%20-%20P%28B%7CA%29P%28A%29%5C%5C%3D%5Cfrac%7B3%7D%7B5%7D%20%2B%5Cfrac%7B16%7D%7B25%7D%20-%5B%5Cfrac%7B4%7D%7B5%7D%5Ctimes%5Cfrac%7B3%7D%7B5%7D%5D%20%20%5C%5C%3D%5Cfrac%7B3%7D%7B5%7D%20%2B%5Cfrac%7B16%7D%7B25%7D-%5Cfrac%7B12%7D%7B25%7D%5C%5C%3D%5Cfrac%7B15%2B16-12%7D%7B25%7D%5C%5C%3D%20%5Cfrac%7B19%7D%7B25%7D)
Thus, the probability that exactly one photo detector of a pair is acceptable is
.
X=3%h I think I'm not to sure hope that helped! Good Luck!!!
Answer:
Yes
Step-by-step explanation:
The negative sign was simply moved to either the numerator or denominator. Either way the number is still a negative one half.
The final answer should be -49/168.