Answer:
0.8594
Step-by-step explanation:
Let a denote the event of forgetting to shut off machine and b be the event of being defective.
-A foreman forgets to shut off machine 55% of the time.
-If he forgets, 15% of molds are defective.
-If he does not, 3% of molds are defective.
#The probability that he forgot to shut off the machine is calculated as:
![P(a \ and \ b)=0.55\times 0.15\\\\=0.0825\\\\](https://tex.z-dn.net/?f=P%28a%20%5C%20and%20%5C%20b%29%3D0.55%5Ctimes%200.15%5C%5C%5C%5C%3D0.0825%5C%5C%5C%5C)
P(a and ~b)=0.55(1-0.15)=0.4675
P(~a and b) = (1-0.55)*0.03=0.0135
P(~a and ~b) = (1-0.55)*(1-0.03)=0.4365
#Conditional probability is defined as:
![P(a|b)=\frac{P(a \ and\ b)}{P(a)}\\\\=\frac{P(a \ and \ b)}{[(P(a \ and \ b)+P(\~a \ and \ b)}\\\\\\=\frac{0.0825}{0.0825+0.0135}\\\\\\=0.8594](https://tex.z-dn.net/?f=P%28a%7Cb%29%3D%5Cfrac%7BP%28a%20%5C%20and%5C%20%20b%29%7D%7BP%28a%29%7D%5C%5C%5C%5C%3D%5Cfrac%7BP%28a%20%5C%20and%20%5C%20b%29%7D%7B%5B%28P%28a%20%5C%20and%20%5C%20b%29%2BP%28%5C~a%20%5C%20and%20%5C%20b%29%7D%5C%5C%5C%5C%5C%5C%3D%5Cfrac%7B0.0825%7D%7B0.0825%2B0.0135%7D%5C%5C%5C%5C%5C%5C%3D0.8594)
Hence, the probability that the foreman forgot to shut off the machine the previous night is 0.8594
Answer:
A) 2
Step-by-step explanation:
Start off with the given information. The question states that the x-int. is 4, so you should recognize that there is a point at (4,0). Plug the point into the equation.
k(4) + 2(0) + 8 = 0
Now simplify the equation.
4k + 0 + 8 = 0
Isolate the variable, make sure it's on its own side.
4k = 8
Now get the k by itself to solve the equation. Divide both sides by 4.
k = 2
60 is my resultados of area
Answer:
8 half cubes
Step-by-step explanation:
8 half cubes
You have to cut 15 pounds into 3.75 four times