Answer:
Step-by-step explanation:
For each component, there are only two possible outcomes. Either it fails, or it does not. The components are independent. We want to know how many outcomes until r failures. The expected value is given by
In which r is the number of failures we want and p is the probability of a failure.
In this problem, we have that:
r = 1 because we want the first failed unit.
![p = 0.4[\tex]So[tex]E = \frac{r}{p} = \frac{1}{0.4} = 2.5](https://tex.z-dn.net/?f=p%20%3D%200.4%5B%5Ctex%5D%3C%2Fp%3E%3Cp%3ESo%3C%2Fp%3E%3Cp%3E%5Btex%5DE%20%3D%20%5Cfrac%7Br%7D%7Bp%7D%20%3D%20%5Cfrac%7B1%7D%7B0.4%7D%20%3D%202.5)
The expected number of systems inspected until the first failed unit is 2.5
Answer:
rectangle = 180
triangle = 350
the triangle has a much larger area.
350-180=170
the triangle by 17
square inches
Answer:
are you at wendys
Step-by-step explanation:
30/5=6 so 1 frosy is 6 dollars and 30-6=24 and 24/5=4.80
Answer: 
<u>Move all terms to the left</u>
<u></u>
<u></u>
<u></u>
<u>Add all the numbers together, and all the variables</u>
<u></u>
<u></u>
<u></u>
<u>Multiply elements</u>
<u></u>
<u></u>
<u></u>
<u>Move all terms containing d to the left, all other terms to the right</u>
<u></u>
<u></u>
Answer:
D
Step-by-step explanation:
hope this helps
