2 years ago

Find the value of x which ABCD must be a parallellogram? x =

1 answer:

3 0

$If\ ABCD\ is\ a\ parallelogram,\ then\\\\2x-1=x+3\ \ \ |add\ 1\ to\ both\ sides\\\\2x=x+4\ \ \ \ |subtract\ x\ from\ both\ sides\\\\\boxed{x=4}$

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Step-by-step explanation:

Here,

Let X be the event that the flights depart on time

Let Y be the event that flights arrive on time

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So the probability that a flight that departs on schedule also arrives on schedule is: 0.79

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