Answer:
The probability is 0.5086
Step-by-step explanation:
The probability P that at least one of these three modules will fail to work properly is calculated as:
P = 1 - P'
Where P' is the probability that all the modules works properly. So, P' os calculated as:
P' = 0.9 * 0.84 * 0.65
P' = 0.4914
Because 0.9 is the probability that module 1 works properly, 0.84 is the probability that module 2 works properly and 0.65 is the probability that module 3 works properly.
Finally, the probability P that at least one of these three modules will fail to work properly is:
P = 1 - 0.4914
P = 0.5086
Answer:
Step 2
Step-by-step explanation:
Because he didn't solve what was inside of the brackets, which would've been 20 divided by 4 if he did add the numbers inside of the brackets.
Answer:
-15
Step-by-step explanation:
so to start you must distribute negative two times negative two equals positive four,
so now your equation looks like this,
2^2 +4+4-3^3
then you need to do the exponents,
2 x 2 = 4
3 x 3 x 3 =27
now it looks like this
4+4+4-27
12 - 27
-15
Hope that helps!
