If an event has a probability P of happening, then there is a probability of (1-P) of the event not happening.
In this case the probability of the event is p=20/69.
Then, the probability of the event not happening is:

Answer: the probability of the event not happening is 49/69.
See, pls, the suggested explanation:
3(5x-1)²=27 ⇔ 75x²-30x-24=0 ⇔ 25x²-10x-8=0 ⇒
Answer:
$32.55
Step-by-step explanation:
93 * .35 = 32.55
True.
For a right angle triangle, the cos of one of the non-right angles equals the sin of the other non right angle
Answer:
$ 56.25 is he answer
Step-by-step explanation:
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