Answer:
Step-by-step explanation:
Given
---- probability that each component fails
Required
We understand that the system will overheat if at least 2 component fails; Assume the components are: x, y and z
The events that the system will overheat are: xyz', xy'z, x'yz and xyz
Where ' means that the component did not fail, and the probability is 1 - p (i.e. complement rule)
So, we have:
So, the required probability is:
Answer:
4/13
Step-by-step explanation:
-6/5x - 6 + 2=4x - 28/5
-6/5x - 4=4x - 28/5
-6/5x - 4x= -28/5 + 4 (multiply each side by 5)
-6x - 20x= -28+20
-26x= -8 (divide each side by 26)
-x= -8/26 (multiply each side by -1)
x= 8/26 (reduce)
x= 4/13
20% is one fifth, so you would multiply $15 by 5 to get an answer of 75
The slope is -4 or c on the table