Given that half of the personal music players sold by a particular brand have a flaw. If the player has the flaw, it dies in the first six months. If it does not have this flaw, then only 20% fail in the first six months.
Let A be the event that it fails in I 6 months
B1 = it has a flaw
B2 = it does not have a flaw
B1 and B2 are mutually exclusive and exhaustive
the chances that it has this flaw
=The probability that it has the flaw is
There is no square root of 6 all you have to do is set up a square root box and put the 6 in it then you split it into factors next you put them in another square root box finally multiply, then you get your simplest form.
Answer:
-17/18
Step-by-step explanation:
find least common multiple, which is 18
multiply the numerators by the number you multiplied on the denominator.
and subtract.
(2-7i)(9+5i)
18+10i-81i-35i^2
The answer is 35i^2 - 71i +18