The event that either M1 or M2 fails has probability

by the addition rule. Failure events are independent, so

so that

Denote this probability by
. Then
follows a geometric distribution with this parameter
and has density

The expectation is
.
Answer:
21 miles per gallon.
Step-by-step explanation:
273 divided by 13 is equivlent to 21
Answer:
Mirror on the wall
Step-by-step explanation:
mirror on the wall
I think that she wouldn't end up with “$14,400” she would end up with $76,800 if you multiply.
Answer:
33.42 divided by 6?
Step-by-step explanation: