Answer:
65,520
Step-by-step explanation:
12x13x20x21=64,520
I hope it helps you get it right
Answer:

And replacing we got:

Step-by-step explanation:
We can define the random variable X as the thickness of a protective coating applied to a conductor designed to work in corrosive conditions. And the distribution for X is given by:

And we want to find this probability:

And in order to find this probability we can use the cumulative distribution function given by:

And if we use this formula for the probability desired we have:

And replacing we got:

6 ........................................................I think
Answer:
142.4
Step-by-step explanation: